Home / 722,601.20-997,116.98-400,251.07

Finding the Fourth Proportional to 722,601.20, 997,116.98 and 400,251.07

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Solution

The fourth proportional to 722,601.20, 997,116.98 and 400,251.07 is: 552,306.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,601.20 : 997,116.98 = 400,251.07 : x
  2. Step 2: Convert to fraction form
    722,601.20/997,116.98 = 400,251.07/x
  3. Step 3: Cross multiply
    722,601.20x = 997,116.98 × 400,251.07
  4. Step 4: Simplify right side
    722,601.20x = 399,097,139,160.80
  5. Step 5: Solve for x
    x = 399,097,139,160.80/722,601.20
  6. Step 6: Final answer
    x = 552,306.22

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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.