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Finding the Fourth Proportional to 523,368.28, 721,522.62 and 353,333.08

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Solution

The fourth proportional to 523,368.28, 721,522.62 and 353,333.08 is: 487,109.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,368.28 : 721,522.62 = 353,333.08 : x
  2. Step 2: Convert to fraction form
    523,368.28/721,522.62 = 353,333.08/x
  3. Step 3: Cross multiply
    523,368.28x = 721,522.62 × 353,333.08
  4. Step 4: Simplify right side
    523,368.28x = 254,937,809,614.27
  5. Step 5: Solve for x
    x = 254,937,809,614.27/523,368.28
  6. Step 6: Final answer
    x = 487,109.78

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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.