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Finding the Fourth Proportional to 614,019.68, 921,238.68 and 374,612.88

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Solution

The fourth proportional to 614,019.68, 921,238.68 and 374,612.88 is: 562,046.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,019.68 : 921,238.68 = 374,612.88 : x
  2. Step 2: Convert to fraction form
    614,019.68/921,238.68 = 374,612.88/x
  3. Step 3: Cross multiply
    614,019.68x = 921,238.68 × 374,612.88
  4. Step 4: Simplify right side
    614,019.68x = 345,107,875,082.20
  5. Step 5: Solve for x
    x = 345,107,875,082.20/614,019.68
  6. Step 6: Final answer
    x = 562,046.93

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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.