Home / 769,875.70-1,062,385.86-425,691.58

Finding the Fourth Proportional to 769,875.70, 1,062,385.86 and 425,691.58

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Solution

The fourth proportional to 769,875.70, 1,062,385.86 and 425,691.58 is: 587,430.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,875.70 : 1,062,385.86 = 425,691.58 : x
  2. Step 2: Convert to fraction form
    769,875.70/1,062,385.86 = 425,691.58/x
  3. Step 3: Cross multiply
    769,875.70x = 1,062,385.86 × 425,691.58
  4. Step 4: Simplify right side
    769,875.70x = 452,248,715,313.06
  5. Step 5: Solve for x
    x = 452,248,715,313.06/769,875.70
  6. Step 6: Final answer
    x = 587,430.82

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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.