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Finding the Fourth Proportional to 532,389.67, 734,713.81 and 302,979.86

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Solution

The fourth proportional to 532,389.67, 734,713.81 and 302,979.86 is: 418,121.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,389.67 : 734,713.81 = 302,979.86 : x
  2. Step 2: Convert to fraction form
    532,389.67/734,713.81 = 302,979.86/x
  3. Step 3: Cross multiply
    532,389.67x = 734,713.81 × 302,979.86
  4. Step 4: Simplify right side
    532,389.67x = 222,603,487,293.87
  5. Step 5: Solve for x
    x = 222,603,487,293.87/532,389.67
  6. Step 6: Final answer
    x = 418,121.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.