Home / 767,780.74-1,059,877.20-495,981.10

Finding the Fourth Proportional to 767,780.74, 1,059,877.20 and 495,981.10

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Solution

The fourth proportional to 767,780.74, 1,059,877.20 and 495,981.10 is: 684,673.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,780.74 : 1,059,877.20 = 495,981.10 : x
  2. Step 2: Convert to fraction form
    767,780.74/1,059,877.20 = 495,981.10/x
  3. Step 3: Cross multiply
    767,780.74x = 1,059,877.20 × 495,981.10
  4. Step 4: Simplify right side
    767,780.74x = 525,679,059,520.92
  5. Step 5: Solve for x
    x = 525,679,059,520.92/767,780.74
  6. Step 6: Final answer
    x = 684,673.41

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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.