Home / 1,054,565.20-1,581,921.58-423,479

Finding the Fourth Proportional to 1,054,565.20, 1,581,921.58 and 423,479

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Solution

The fourth proportional to 1,054,565.20, 1,581,921.58 and 423,479 is: 635,248.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,054,565.20 : 1,581,921.58 = 423,479 : x
  2. Step 2: Convert to fraction form
    1,054,565.20/1,581,921.58 = 423,479/x
  3. Step 3: Cross multiply
    1,054,565.20x = 1,581,921.58 × 423,479
  4. Step 4: Simplify right side
    1,054,565.20x = 669,910,568,776.82
  5. Step 5: Solve for x
    x = 669,910,568,776.82/1,054,565.20
  6. Step 6: Final answer
    x = 635,248.13

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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.