Home / 1,011,379.52-1,517,127.62-380,298.80

Finding the Fourth Proportional to 1,011,379.52, 1,517,127.62 and 380,298.80

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Solution

The fourth proportional to 1,011,379.52, 1,517,127.62 and 380,298.80 is: 570,470.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,379.52 : 1,517,127.62 = 380,298.80 : x
  2. Step 2: Convert to fraction form
    1,011,379.52/1,517,127.62 = 380,298.80/x
  3. Step 3: Cross multiply
    1,011,379.52x = 1,517,127.62 × 380,298.80
  4. Step 4: Simplify right side
    1,011,379.52x = 576,961,813,332.86
  5. Step 5: Solve for x
    x = 576,961,813,332.86/1,011,379.52
  6. Step 6: Final answer
    x = 570,470.14

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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.