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Finding the Fourth Proportional to 539,364.60, 744,008.91 and 345,703.32

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Solution

The fourth proportional to 539,364.60, 744,008.91 and 345,703.32 is: 476,869.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,364.60 : 744,008.91 = 345,703.32 : x
  2. Step 2: Convert to fraction form
    539,364.60/744,008.91 = 345,703.32/x
  3. Step 3: Cross multiply
    539,364.60x = 744,008.91 × 345,703.32
  4. Step 4: Simplify right side
    539,364.60x = 257,206,350,296.58
  5. Step 5: Solve for x
    x = 257,206,350,296.58/539,364.60
  6. Step 6: Final answer
    x = 476,869.17

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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.