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Finding the Fourth Proportional to 529,854.39, 731,218.28 and 303,543.63

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Solution

The fourth proportional to 529,854.39, 731,218.28 and 303,543.63 is: 418,901.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,854.39 : 731,218.28 = 303,543.63 : x
  2. Step 2: Convert to fraction form
    529,854.39/731,218.28 = 303,543.63/x
  3. Step 3: Cross multiply
    529,854.39x = 731,218.28 × 303,543.63
  4. Step 4: Simplify right side
    529,854.39x = 221,956,649,515.84
  5. Step 5: Solve for x
    x = 221,956,649,515.84/529,854.39
  6. Step 6: Final answer
    x = 418,901.22

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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.