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Finding the Fourth Proportional to 533,088.78, 735,682.29 and 291,387.60

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Solution

The fourth proportional to 533,088.78, 735,682.29 and 291,387.60 is: 402,125.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,088.78 : 735,682.29 = 291,387.60 : x
  2. Step 2: Convert to fraction form
    533,088.78/735,682.29 = 291,387.60/x
  3. Step 3: Cross multiply
    533,088.78x = 735,682.29 × 291,387.60
  4. Step 4: Simplify right side
    533,088.78x = 214,368,696,845.60
  5. Step 5: Solve for x
    x = 214,368,696,845.60/533,088.78
  6. Step 6: Final answer
    x = 402,125.70

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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.