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Finding the Fourth Proportional to 646,871.10, 970,306.65 and 646,871.10

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Solution

The fourth proportional to 646,871.10, 970,306.65 and 646,871.10 is: 970,306.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,871.10 : 970,306.65 = 646,871.10 : x
  2. Step 2: Convert to fraction form
    646,871.10/970,306.65 = 646,871.10/x
  3. Step 3: Cross multiply
    646,871.10x = 970,306.65 × 646,871.10
  4. Step 4: Simplify right side
    646,871.10x = 627,663,330,022.82
  5. Step 5: Solve for x
    x = 627,663,330,022.82/646,871.10
  6. Step 6: Final answer
    x = 970,306.65

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Similar ratio
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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.