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Finding the Fourth Proportional to 494,237.80, 741,356.70 and 458,808.40

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Solution

The fourth proportional to 494,237.80, 741,356.70 and 458,808.40 is: 688,212.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,237.80 : 741,356.70 = 458,808.40 : x
  2. Step 2: Convert to fraction form
    494,237.80/741,356.70 = 458,808.40/x
  3. Step 3: Cross multiply
    494,237.80x = 741,356.70 × 458,808.40
  4. Step 4: Simplify right side
    494,237.80x = 340,140,681,356.28
  5. Step 5: Solve for x
    x = 340,140,681,356.28/494,237.80
  6. Step 6: Final answer
    x = 688,212.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.