Home / 1,011,401.52-1,517,160.66-380,320.80

Finding the Fourth Proportional to 1,011,401.52, 1,517,160.66 and 380,320.80

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Solution

The fourth proportional to 1,011,401.52, 1,517,160.66 and 380,320.80 is: 570,503.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,401.52 : 1,517,160.66 = 380,320.80 : x
  2. Step 2: Convert to fraction form
    1,011,401.52/1,517,160.66 = 380,320.80/x
  3. Step 3: Cross multiply
    1,011,401.52x = 1,517,160.66 × 380,320.80
  4. Step 4: Simplify right side
    1,011,401.52x = 577,007,755,939.73
  5. Step 5: Solve for x
    x = 577,007,755,939.73/1,011,401.52
  6. Step 6: Final answer
    x = 570,503.15

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Double scale
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1.5x scale

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.