Home / 875,228.20-1,312,842.30-314,319.40

Finding the Fourth Proportional to 875,228.20, 1,312,842.30 and 314,319.40

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Solution

The fourth proportional to 875,228.20, 1,312,842.30 and 314,319.40 is: 471,479.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,228.20 : 1,312,842.30 = 314,319.40 : x
  2. Step 2: Convert to fraction form
    875,228.20/1,312,842.30 = 314,319.40/x
  3. Step 3: Cross multiply
    875,228.20x = 1,312,842.30 × 314,319.40
  4. Step 4: Simplify right side
    875,228.20x = 412,651,804,030.62
  5. Step 5: Solve for x
    x = 412,651,804,030.62/875,228.20
  6. Step 6: Final answer
    x = 471,479.10

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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.