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Finding the Fourth Proportional to 722,545.82, 997,100.18 and 400,254.92

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Solution

The fourth proportional to 722,545.82, 997,100.18 and 400,254.92 is: 552,344.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,545.82 : 997,100.18 = 400,254.92 : x
  2. Step 2: Convert to fraction form
    722,545.82/997,100.18 = 400,254.92/x
  3. Step 3: Cross multiply
    722,545.82x = 997,100.18 × 400,254.92
  4. Step 4: Simplify right side
    722,545.82x = 399,094,252,777.89
  5. Step 5: Solve for x
    x = 399,094,252,777.89/722,545.82
  6. Step 6: Final answer
    x = 552,344.56

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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.