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Finding the Fourth Proportional to 539,613.02, 744,672 and 297,895.72

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Solution

The fourth proportional to 539,613.02, 744,672 and 297,895.72 is: 411,099.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,613.02 : 744,672 = 297,895.72 : x
  2. Step 2: Convert to fraction form
    539,613.02/744,672 = 297,895.72/x
  3. Step 3: Cross multiply
    539,613.02x = 744,672 × 297,895.72
  4. Step 4: Simplify right side
    539,613.02x = 221,834,601,603.84
  5. Step 5: Solve for x
    x = 221,834,601,603.84/539,613.02
  6. Step 6: Final answer
    x = 411,099.42

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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.