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Finding the Fourth Proportional to 624,904.56, 862,363.68 and 338,418

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Solution

The fourth proportional to 624,904.56, 862,363.68 and 338,418 is: 467,014.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,904.56 : 862,363.68 = 338,418 : x
  2. Step 2: Convert to fraction form
    624,904.56/862,363.68 = 338,418/x
  3. Step 3: Cross multiply
    624,904.56x = 862,363.68 × 338,418
  4. Step 4: Simplify right side
    624,904.56x = 291,839,391,858.24
  5. Step 5: Solve for x
    x = 291,839,391,858.24/624,904.56
  6. Step 6: Final answer
    x = 467,014.34

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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.