Home / 905,729.52-1,249,919.57-497,869.07

Finding the Fourth Proportional to 905,729.52, 1,249,919.57 and 497,869.07

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Solution

The fourth proportional to 905,729.52, 1,249,919.57 and 497,869.07 is: 687,066.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,729.52 : 1,249,919.57 = 497,869.07 : x
  2. Step 2: Convert to fraction form
    905,729.52/1,249,919.57 = 497,869.07/x
  3. Step 3: Cross multiply
    905,729.52x = 1,249,919.57 × 497,869.07
  4. Step 4: Simplify right side
    905,729.52x = 622,296,291,705.96
  5. Step 5: Solve for x
    x = 622,296,291,705.96/905,729.52
  6. Step 6: Final answer
    x = 687,066.37

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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.