Home / 826,746.30-1,240,120.35-328,110.30

Finding the Fourth Proportional to 826,746.30, 1,240,120.35 and 328,110.30

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Solution

The fourth proportional to 826,746.30, 1,240,120.35 and 328,110.30 is: 492,165.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,746.30 : 1,240,120.35 = 328,110.30 : x
  2. Step 2: Convert to fraction form
    826,746.30/1,240,120.35 = 328,110.30/x
  3. Step 3: Cross multiply
    826,746.30x = 1,240,120.35 × 328,110.30
  4. Step 4: Simplify right side
    826,746.30x = 406,896,260,074.61
  5. Step 5: Solve for x
    x = 406,896,260,074.61/826,746.30
  6. Step 6: Final answer
    x = 492,165.81

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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.