Home / 722,983.55-997,717.38-400,714.44

Finding the Fourth Proportional to 722,983.55, 997,717.38 and 400,714.44

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Solution

The fourth proportional to 722,983.55, 997,717.38 and 400,714.44 is: 552,985.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,983.55 : 997,717.38 = 400,714.44 : x
  2. Step 2: Convert to fraction form
    722,983.55/997,717.38 = 400,714.44/x
  3. Step 3: Cross multiply
    722,983.55x = 997,717.38 × 400,714.44
  4. Step 4: Simplify right side
    722,983.55x = 399,799,761,204.97
  5. Step 5: Solve for x
    x = 399,799,761,204.97/722,983.55
  6. Step 6: Final answer
    x = 552,985.98

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Double scale
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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.