Home / 1,011,390.20-1,517,306.88-380,304.02

Finding the Fourth Proportional to 1,011,390.20, 1,517,306.88 and 380,304.02

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Solution

The fourth proportional to 1,011,390.20, 1,517,306.88 and 380,304.02 is: 570,539.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,390.20 : 1,517,306.88 = 380,304.02 : x
  2. Step 2: Convert to fraction form
    1,011,390.20/1,517,306.88 = 380,304.02/x
  3. Step 3: Cross multiply
    1,011,390.20x = 1,517,306.88 × 380,304.02
  4. Step 4: Simplify right side
    1,011,390.20x = 577,037,906,037.66
  5. Step 5: Solve for x
    x = 577,037,906,037.66/1,011,390.20
  6. Step 6: Final answer
    x = 570,539.35

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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.