Home / 875,398.43-1,208,142.71-513,126.66

Finding the Fourth Proportional to 875,398.43, 1,208,142.71 and 513,126.66

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Solution

The fourth proportional to 875,398.43, 1,208,142.71 and 513,126.66 is: 708,169.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,398.43 : 1,208,142.71 = 513,126.66 : x
  2. Step 2: Convert to fraction form
    875,398.43/1,208,142.71 = 513,126.66/x
  3. Step 3: Cross multiply
    875,398.43x = 1,208,142.71 × 513,126.66
  4. Step 4: Simplify right side
    875,398.43x = 619,930,231,020.02
  5. Step 5: Solve for x
    x = 619,930,231,020.02/875,398.43
  6. Step 6: Final answer
    x = 708,169.23

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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.