Home / 767,840.70-1,151,761.05-710,103.90

Finding the Fourth Proportional to 767,840.70, 1,151,761.05 and 710,103.90

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Solution

The fourth proportional to 767,840.70, 1,151,761.05 and 710,103.90 is: 1,065,155.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,840.70 : 1,151,761.05 = 710,103.90 : x
  2. Step 2: Convert to fraction form
    767,840.70/1,151,761.05 = 710,103.90/x
  3. Step 3: Cross multiply
    767,840.70x = 1,151,761.05 × 710,103.90
  4. Step 4: Simplify right side
    767,840.70x = 817,870,013,473.10
  5. Step 5: Solve for x
    x = 817,870,013,473.10/767,840.70
  6. Step 6: Final answer
    x = 1,065,155.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.