Home / 722,983.10-997,716.75-400,713.98

Finding the Fourth Proportional to 722,983.10, 997,716.75 and 400,713.98

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Solution

The fourth proportional to 722,983.10, 997,716.75 and 400,713.98 is: 552,985.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,983.10 : 997,716.75 = 400,713.98 : x
  2. Step 2: Convert to fraction form
    722,983.10/997,716.75 = 400,713.98/x
  3. Step 3: Cross multiply
    722,983.10x = 997,716.75 × 400,713.98
  4. Step 4: Simplify right side
    722,983.10x = 399,799,049,805.17
  5. Step 5: Solve for x
    x = 399,799,049,805.17/722,983.10
  6. Step 6: Final answer
    x = 552,985.33

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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.