Home / 1,002,176.40-1,499,765.40-687,248.40

Finding the Fourth Proportional to 1,002,176.40, 1,499,765.40 and 687,248.40

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Solution

The fourth proportional to 1,002,176.40, 1,499,765.40 and 687,248.40 is: 1,028,473.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,002,176.40 : 1,499,765.40 = 687,248.40 : x
  2. Step 2: Convert to fraction form
    1,002,176.40/1,499,765.40 = 687,248.40/x
  3. Step 3: Cross multiply
    1,002,176.40x = 1,499,765.40 × 687,248.40
  4. Step 4: Simplify right side
    1,002,176.40x = 1,030,711,371,525.36
  5. Step 5: Solve for x
    x = 1,030,711,371,525.36/1,002,176.40
  6. Step 6: Final answer
    x = 1,028,473.00

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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.