Home / 788,078.30-1,182,117.45-456,302.30

Finding the Fourth Proportional to 788,078.30, 1,182,117.45 and 456,302.30

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Solution

The fourth proportional to 788,078.30, 1,182,117.45 and 456,302.30 is: 684,453.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,078.30 : 1,182,117.45 = 456,302.30 : x
  2. Step 2: Convert to fraction form
    788,078.30/1,182,117.45 = 456,302.30/x
  3. Step 3: Cross multiply
    788,078.30x = 1,182,117.45 × 456,302.30
  4. Step 4: Simplify right side
    788,078.30x = 539,402,911,305.14
  5. Step 5: Solve for x
    x = 539,402,911,305.14/788,078.30
  6. Step 6: Final answer
    x = 684,453.45

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.