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Finding the Fourth Proportional to 722,860.27, 997,553.07 and 400,575.74

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Solution

The fourth proportional to 722,860.27, 997,553.07 and 400,575.74 is: 552,797.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,860.27 : 997,553.07 = 400,575.74 : x
  2. Step 2: Convert to fraction form
    722,860.27/997,553.07 = 400,575.74/x
  3. Step 3: Cross multiply
    722,860.27x = 997,553.07 × 400,575.74
  4. Step 4: Simplify right side
    722,860.27x = 399,595,559,204.52
  5. Step 5: Solve for x
    x = 399,595,559,204.52/722,860.27
  6. Step 6: Final answer
    x = 552,797.79

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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.