Home / 1,039,411.91-1,559,121.69-319,748.63

Finding the Fourth Proportional to 1,039,411.91, 1,559,121.69 and 319,748.63

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Solution

The fourth proportional to 1,039,411.91, 1,559,121.69 and 319,748.63 is: 479,624.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,411.91 : 1,559,121.69 = 319,748.63 : x
  2. Step 2: Convert to fraction form
    1,039,411.91/1,559,121.69 = 319,748.63/x
  3. Step 3: Cross multiply
    1,039,411.91x = 1,559,121.69 × 319,748.63
  4. Step 4: Simplify right side
    1,039,411.91x = 498,527,024,380.79
  5. Step 5: Solve for x
    x = 498,527,024,380.79/1,039,411.91
  6. Step 6: Final answer
    x = 479,624.12

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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.