Home / 722,986.20-997,695.36-400,726.26

Finding the Fourth Proportional to 722,986.20, 997,695.36 and 400,726.26

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Solution

The fourth proportional to 722,986.20, 997,695.36 and 400,726.26 is: 552,988.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,986.20 : 997,695.36 = 400,726.26 : x
  2. Step 2: Convert to fraction form
    722,986.20/997,695.36 = 400,726.26/x
  3. Step 3: Cross multiply
    722,986.20x = 997,695.36 × 400,726.26
  4. Step 4: Simplify right side
    722,986.20x = 399,802,730,232.15
  5. Step 5: Solve for x
    x = 399,802,730,232.15/722,986.20
  6. Step 6: Final answer
    x = 552,988.05

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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.