Home / 905,729.49-1,249,919.52-497,869.04

Finding the Fourth Proportional to 905,729.49, 1,249,919.52 and 497,869.04

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Solution

The fourth proportional to 905,729.49, 1,249,919.52 and 497,869.04 is: 687,066.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,729.49 : 1,249,919.52 = 497,869.04 : x
  2. Step 2: Convert to fraction form
    905,729.49/1,249,919.52 = 497,869.04/x
  3. Step 3: Cross multiply
    905,729.49x = 1,249,919.52 × 497,869.04
  4. Step 4: Simplify right side
    905,729.49x = 622,296,231,499.66
  5. Step 5: Solve for x
    x = 622,296,231,499.66/905,729.49
  6. Step 6: Final answer
    x = 687,066.32

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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.