Home / 732,690.78-1,011,459.57-491,131.17

Finding the Fourth Proportional to 732,690.78, 1,011,459.57 and 491,131.17

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Solution

The fourth proportional to 732,690.78, 1,011,459.57 and 491,131.17 is: 677,993.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    732,690.78 : 1,011,459.57 = 491,131.17 : x
  2. Step 2: Convert to fraction form
    732,690.78/1,011,459.57 = 491,131.17/x
  3. Step 3: Cross multiply
    732,690.78x = 1,011,459.57 × 491,131.17
  4. Step 4: Simplify right side
    732,690.78x = 496,759,322,021.80
  5. Step 5: Solve for x
    x = 496,759,322,021.80/732,690.78
  6. Step 6: Final answer
    x = 677,993.14

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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.