Home / 908,669.22-1,253,972.10-500,785.98

Finding the Fourth Proportional to 908,669.22, 1,253,972.10 and 500,785.98

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Solution

The fourth proportional to 908,669.22, 1,253,972.10 and 500,785.98 is: 691,089.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,669.22 : 1,253,972.10 = 500,785.98 : x
  2. Step 2: Convert to fraction form
    908,669.22/1,253,972.10 = 500,785.98/x
  3. Step 3: Cross multiply
    908,669.22x = 1,253,972.10 × 500,785.98
  4. Step 4: Simplify right side
    908,669.22x = 627,971,646,991.16
  5. Step 5: Solve for x
    x = 627,971,646,991.16/908,669.22
  6. Step 6: Final answer
    x = 691,089.38

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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.