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Finding the Fourth Proportional to 530,333.08, 731,617.38 and 315,350.68

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Solution

The fourth proportional to 530,333.08, 731,617.38 and 315,350.68 is: 435,039.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,333.08 : 731,617.38 = 315,350.68 : x
  2. Step 2: Convert to fraction form
    530,333.08/731,617.38 = 315,350.68/x
  3. Step 3: Cross multiply
    530,333.08x = 731,617.38 × 315,350.68
  4. Step 4: Simplify right side
    530,333.08x = 230,716,038,282.82
  5. Step 5: Solve for x
    x = 230,716,038,282.82/530,333.08
  6. Step 6: Final answer
    x = 435,039.88

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1.5x scale

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.