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Finding the Fourth Proportional to 589,332.98, 884,439.42 and 399,342.68

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Solution

The fourth proportional to 589,332.98, 884,439.42 and 399,342.68 is: 599,312.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,332.98 : 884,439.42 = 399,342.68 : x
  2. Step 2: Convert to fraction form
    589,332.98/884,439.42 = 399,342.68/x
  3. Step 3: Cross multiply
    589,332.98x = 884,439.42 × 399,342.68
  4. Step 4: Simplify right side
    589,332.98x = 353,194,408,280.45
  5. Step 5: Solve for x
    x = 353,194,408,280.45/589,332.98
  6. Step 6: Final answer
    x = 599,312.14

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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.