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Finding the Fourth Proportional to 607,423.66, 912,071.88 and 513,882.97

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Solution

The fourth proportional to 607,423.66, 912,071.88 and 513,882.97 is: 771,616.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,423.66 : 912,071.88 = 513,882.97 : x
  2. Step 2: Convert to fraction form
    607,423.66/912,071.88 = 513,882.97/x
  3. Step 3: Cross multiply
    607,423.66x = 912,071.88 × 513,882.97
  4. Step 4: Simplify right side
    607,423.66x = 468,698,204,267.70
  5. Step 5: Solve for x
    x = 468,698,204,267.70/607,423.66
  6. Step 6: Final answer
    x = 771,616.64

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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.