Home / 745,972.20-1,119,104.10-319,507.20

Finding the Fourth Proportional to 745,972.20, 1,119,104.10 and 319,507.20

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Solution

The fourth proportional to 745,972.20, 1,119,104.10 and 319,507.20 is: 479,323.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,972.20 : 1,119,104.10 = 319,507.20 : x
  2. Step 2: Convert to fraction form
    745,972.20/1,119,104.10 = 319,507.20/x
  3. Step 3: Cross multiply
    745,972.20x = 1,119,104.10 × 319,507.20
  4. Step 4: Simplify right side
    745,972.20x = 357,561,817,499.52
  5. Step 5: Solve for x
    x = 357,561,817,499.52/745,972.20
  6. Step 6: Final answer
    x = 479,323.25

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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.