Home / 1,005,520.12-1,387,916.90-576,086.20

Finding the Fourth Proportional to 1,005,520.12, 1,387,916.90 and 576,086.20

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Solution

The fourth proportional to 1,005,520.12, 1,387,916.90 and 576,086.20 is: 795,170.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,520.12 : 1,387,916.90 = 576,086.20 : x
  2. Step 2: Convert to fraction form
    1,005,520.12/1,387,916.90 = 576,086.20/x
  3. Step 3: Cross multiply
    1,005,520.12x = 1,387,916.90 × 576,086.20
  4. Step 4: Simplify right side
    1,005,520.12x = 799,559,772,836.78
  5. Step 5: Solve for x
    x = 799,559,772,836.78/1,005,520.12
  6. Step 6: Final answer
    x = 795,170.34

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Double scale
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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.