Home / 739,120.62-1,019,619.76-477,385.93

Finding the Fourth Proportional to 739,120.62, 1,019,619.76 and 477,385.93

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Solution

The fourth proportional to 739,120.62, 1,019,619.76 and 477,385.93 is: 658,555.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,120.62 : 1,019,619.76 = 477,385.93 : x
  2. Step 2: Convert to fraction form
    739,120.62/1,019,619.76 = 477,385.93/x
  3. Step 3: Cross multiply
    739,120.62x = 1,019,619.76 × 477,385.93
  4. Step 4: Simplify right side
    739,120.62x = 486,752,127,373.98
  5. Step 5: Solve for x
    x = 486,752,127,373.98/739,120.62
  6. Step 6: Final answer
    x = 658,555.74

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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.