Home / 1,117,136.78-1,674,392.98-516,829.90

Finding the Fourth Proportional to 1,117,136.78, 1,674,392.98 and 516,829.90

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Solution

The fourth proportional to 1,117,136.78, 1,674,392.98 and 516,829.90 is: 774,637.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,136.78 : 1,674,392.98 = 516,829.90 : x
  2. Step 2: Convert to fraction form
    1,117,136.78/1,674,392.98 = 516,829.90/x
  3. Step 3: Cross multiply
    1,117,136.78x = 1,674,392.98 × 516,829.90
  4. Step 4: Simplify right side
    1,117,136.78x = 865,376,356,414.10
  5. Step 5: Solve for x
    x = 865,376,356,414.10/1,117,136.78
  6. Step 6: Final answer
    x = 774,637.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.