Home / 709,451.52-979,063.73-387,182.35

Finding the Fourth Proportional to 709,451.52, 979,063.73 and 387,182.35

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Solution

The fourth proportional to 709,451.52, 979,063.73 and 387,182.35 is: 534,322.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,451.52 : 979,063.73 = 387,182.35 : x
  2. Step 2: Convert to fraction form
    709,451.52/979,063.73 = 387,182.35/x
  3. Step 3: Cross multiply
    709,451.52x = 979,063.73 × 387,182.35
  4. Step 4: Simplify right side
    709,451.52x = 379,076,195,781.17
  5. Step 5: Solve for x
    x = 379,076,195,781.17/709,451.52
  6. Step 6: Final answer
    x = 534,322.90

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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.