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Finding the Fourth Proportional to 710,402.08, 980,354.46 and 404,462.62

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Solution

The fourth proportional to 710,402.08, 980,354.46 and 404,462.62 is: 558,158.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,402.08 : 980,354.46 = 404,462.62 : x
  2. Step 2: Convert to fraction form
    710,402.08/980,354.46 = 404,462.62/x
  3. Step 3: Cross multiply
    710,402.08x = 980,354.46 × 404,462.62
  4. Step 4: Simplify right side
    710,402.08x = 396,516,733,420.29
  5. Step 5: Solve for x
    x = 396,516,733,420.29/710,402.08
  6. Step 6: Final answer
    x = 558,158.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.