Home / 709,822.32-979,549.77-387,532.38

Finding the Fourth Proportional to 709,822.32, 979,549.77 and 387,532.38

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Solution

The fourth proportional to 709,822.32, 979,549.77 and 387,532.38 is: 534,791.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,822.32 : 979,549.77 = 387,532.38 : x
  2. Step 2: Convert to fraction form
    709,822.32/979,549.77 = 387,532.38/x
  3. Step 3: Cross multiply
    709,822.32x = 979,549.77 × 387,532.38
  4. Step 4: Simplify right side
    709,822.32x = 379,607,253,696.55
  5. Step 5: Solve for x
    x = 379,607,253,696.55/709,822.32
  6. Step 6: Final answer
    x = 534,791.94

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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.