Home / 530,286.64-731,810.82-288,584.53

Finding the Fourth Proportional to 530,286.64, 731,810.82 and 288,584.53

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Solution

The fourth proportional to 530,286.64, 731,810.82 and 288,584.53 is: 398,254.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,286.64 : 731,810.82 = 288,584.53 : x
  2. Step 2: Convert to fraction form
    530,286.64/731,810.82 = 288,584.53/x
  3. Step 3: Cross multiply
    530,286.64x = 731,810.82 × 288,584.53
  4. Step 4: Simplify right side
    530,286.64x = 211,189,280,791.28
  5. Step 5: Solve for x
    x = 211,189,280,791.28/530,286.64
  6. Step 6: Final answer
    x = 398,254.95

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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.