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Finding the Fourth Proportional to 629,446.71, 868,636.58 and 342,966.80

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Solution

The fourth proportional to 629,446.71, 868,636.58 and 342,966.80 is: 473,294.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,446.71 : 868,636.58 = 342,966.80 : x
  2. Step 2: Convert to fraction form
    629,446.71/868,636.58 = 342,966.80/x
  3. Step 3: Cross multiply
    629,446.71x = 868,636.58 × 342,966.80
  4. Step 4: Simplify right side
    629,446.71x = 297,913,506,891.37
  5. Step 5: Solve for x
    x = 297,913,506,891.37/629,446.71
  6. Step 6: Final answer
    x = 473,294.25

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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.