Home / 530,182.26-731,645.84-315,317.60

Finding the Fourth Proportional to 530,182.26, 731,645.84 and 315,317.60

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Solution

The fourth proportional to 530,182.26, 731,645.84 and 315,317.60 is: 435,134.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,182.26 : 731,645.84 = 315,317.60 : x
  2. Step 2: Convert to fraction form
    530,182.26/731,645.84 = 315,317.60/x
  3. Step 3: Cross multiply
    530,182.26x = 731,645.84 × 315,317.60
  4. Step 4: Simplify right side
    530,182.26x = 230,700,810,318.78
  5. Step 5: Solve for x
    x = 230,700,810,318.78/530,182.26
  6. Step 6: Final answer
    x = 435,134.91

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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.