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Finding the Fourth Proportional to 530,589.66, 732,213.84 and 288,872.25

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Solution

The fourth proportional to 530,589.66, 732,213.84 and 288,872.25 is: 398,643.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,589.66 : 732,213.84 = 288,872.25 : x
  2. Step 2: Convert to fraction form
    530,589.66/732,213.84 = 288,872.25/x
  3. Step 3: Cross multiply
    530,589.66x = 732,213.84 × 288,872.25
  4. Step 4: Simplify right side
    530,589.66x = 211,516,258,620.08
  5. Step 5: Solve for x
    x = 211,516,258,620.08/530,589.66
  6. Step 6: Final answer
    x = 398,643.76

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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.