Home / 722,975.98-997,679.68-400,691.56

Finding the Fourth Proportional to 722,975.98, 997,679.68 and 400,691.56

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Solution

The fourth proportional to 722,975.98, 997,679.68 and 400,691.56 is: 552,939.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,975.98 : 997,679.68 = 400,691.56 : x
  2. Step 2: Convert to fraction form
    722,975.98/997,679.68 = 400,691.56/x
  3. Step 3: Cross multiply
    722,975.98x = 997,679.68 × 400,691.56
  4. Step 4: Simplify right side
    722,975.98x = 399,761,827,359.50
  5. Step 5: Solve for x
    x = 399,761,827,359.50/722,975.98
  6. Step 6: Final answer
    x = 552,939.29

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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.