Home / 530,181.76-731,645.14-315,317.10

Finding the Fourth Proportional to 530,181.76, 731,645.14 and 315,317.10

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Solution

The fourth proportional to 530,181.76, 731,645.14 and 315,317.10 is: 435,134.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,181.76 : 731,645.14 = 315,317.10 : x
  2. Step 2: Convert to fraction form
    530,181.76/731,645.14 = 315,317.10/x
  3. Step 3: Cross multiply
    530,181.76x = 731,645.14 × 315,317.10
  4. Step 4: Simplify right side
    530,181.76x = 230,700,223,773.89
  5. Step 5: Solve for x
    x = 230,700,223,773.89/530,181.76
  6. Step 6: Final answer
    x = 435,134.21

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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.