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Finding the Fourth Proportional to 539,612.90, 744,671.83 and 297,895.60

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Solution

The fourth proportional to 539,612.90, 744,671.83 and 297,895.60 is: 411,099.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,612.90 : 744,671.83 = 297,895.60 : x
  2. Step 2: Convert to fraction form
    539,612.90/744,671.83 = 297,895.60/x
  3. Step 3: Cross multiply
    539,612.90x = 744,671.83 × 297,895.60
  4. Step 4: Simplify right side
    539,612.90x = 221,834,457,877.59
  5. Step 5: Solve for x
    x = 221,834,457,877.59/539,612.90
  6. Step 6: Final answer
    x = 411,099.25

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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.