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Finding the Fourth Proportional to 539,364.10, 744,008.22 and 345,702.82

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Solution

The fourth proportional to 539,364.10, 744,008.22 and 345,702.82 is: 476,868.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,364.10 : 744,008.22 = 345,702.82 : x
  2. Step 2: Convert to fraction form
    539,364.10/744,008.22 = 345,702.82/x
  3. Step 3: Cross multiply
    539,364.10x = 744,008.22 × 345,702.82
  4. Step 4: Simplify right side
    539,364.10x = 257,205,739,757.18
  5. Step 5: Solve for x
    x = 257,205,739,757.18/539,364.10
  6. Step 6: Final answer
    x = 476,868.48

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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.