Home / 722,526.24-997,086.08-400,257.20

Finding the Fourth Proportional to 722,526.24, 997,086.08 and 400,257.20

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Solution

The fourth proportional to 722,526.24, 997,086.08 and 400,257.20 is: 552,354.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,526.24 : 997,086.08 = 400,257.20 : x
  2. Step 2: Convert to fraction form
    722,526.24/997,086.08 = 400,257.20/x
  3. Step 3: Cross multiply
    722,526.24x = 997,086.08 × 400,257.20
  4. Step 4: Simplify right side
    722,526.24x = 399,090,882,539.78
  5. Step 5: Solve for x
    x = 399,090,882,539.78/722,526.24
  6. Step 6: Final answer
    x = 552,354.86

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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.