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Finding the Fourth Proportional to 722,548.52, 997,117.02 and 400,279.52

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Solution

The fourth proportional to 722,548.52, 997,117.02 and 400,279.52 is: 552,385.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,548.52 : 997,117.02 = 400,279.52 : x
  2. Step 2: Convert to fraction form
    722,548.52/997,117.02 = 400,279.52/x
  3. Step 3: Cross multiply
    722,548.52x = 997,117.02 × 400,279.52
  4. Step 4: Simplify right side
    722,548.52x = 399,125,522,149.43
  5. Step 5: Solve for x
    x = 399,125,522,149.43/722,548.52
  6. Step 6: Final answer
    x = 552,385.77

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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.