Home / 530,033.91-731,439.09-288,318.44

Finding the Fourth Proportional to 530,033.91, 731,439.09 and 288,318.44

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Solution

The fourth proportional to 530,033.91, 731,439.09 and 288,318.44 is: 397,875.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,033.91 : 731,439.09 = 288,318.44 : x
  2. Step 2: Convert to fraction form
    530,033.91/731,439.09 = 288,318.44/x
  3. Step 3: Cross multiply
    530,033.91x = 731,439.09 × 288,318.44
  4. Step 4: Simplify right side
    530,033.91x = 210,887,373,726.62
  5. Step 5: Solve for x
    x = 210,887,373,726.62/530,033.91
  6. Step 6: Final answer
    x = 397,875.25

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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.