Home / 673,792.60-1,010,688.90-618,680.20

Finding the Fourth Proportional to 673,792.60, 1,010,688.90 and 618,680.20

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Solution

The fourth proportional to 673,792.60, 1,010,688.90 and 618,680.20 is: 928,020.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,792.60 : 1,010,688.90 = 618,680.20 : x
  2. Step 2: Convert to fraction form
    673,792.60/1,010,688.90 = 618,680.20/x
  3. Step 3: Cross multiply
    673,792.60x = 1,010,688.90 × 618,680.20
  4. Step 4: Simplify right side
    673,792.60x = 625,293,210,789.78
  5. Step 5: Solve for x
    x = 625,293,210,789.78/673,792.60
  6. Step 6: Final answer
    x = 928,020.30

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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.