Home / 722,548.02-997,116.33-400,279.02

Finding the Fourth Proportional to 722,548.02, 997,116.33 and 400,279.02

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Solution

The fourth proportional to 722,548.02, 997,116.33 and 400,279.02 is: 552,385.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,548.02 : 997,116.33 = 400,279.02 : x
  2. Step 2: Convert to fraction form
    722,548.02/997,116.33 = 400,279.02/x
  3. Step 3: Cross multiply
    722,548.02x = 997,116.33 × 400,279.02
  4. Step 4: Simplify right side
    722,548.02x = 399,124,747,398.40
  5. Step 5: Solve for x
    x = 399,124,747,398.40/722,548.02
  6. Step 6: Final answer
    x = 552,385.08

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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.