Home / 629,612.18-868,839.45-343,126.07

Finding the Fourth Proportional to 629,612.18, 868,839.45 and 343,126.07

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Solution

The fourth proportional to 629,612.18, 868,839.45 and 343,126.07 is: 473,500.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,612.18 : 868,839.45 = 343,126.07 : x
  2. Step 2: Convert to fraction form
    629,612.18/868,839.45 = 343,126.07/x
  3. Step 3: Cross multiply
    629,612.18x = 868,839.45 × 343,126.07
  4. Step 4: Simplify right side
    629,612.18x = 298,121,465,939.46
  5. Step 5: Solve for x
    x = 298,121,465,939.46/629,612.18
  6. Step 6: Final answer
    x = 473,500.16

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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.