Home / 905,627.13-1,249,793.55-497,721.57

Finding the Fourth Proportional to 905,627.13, 1,249,793.55 and 497,721.57

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Solution

The fourth proportional to 905,627.13, 1,249,793.55 and 497,721.57 is: 686,871.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,627.13 : 1,249,793.55 = 497,721.57 : x
  2. Step 2: Convert to fraction form
    905,627.13/1,249,793.55 = 497,721.57/x
  3. Step 3: Cross multiply
    905,627.13x = 1,249,793.55 × 497,721.57
  4. Step 4: Simplify right side
    905,627.13x = 622,049,207,881.87
  5. Step 5: Solve for x
    x = 622,049,207,881.87/905,627.13
  6. Step 6: Final answer
    x = 686,871.22

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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.