Home / 905,627.28-1,249,793.74-497,721.68

Finding the Fourth Proportional to 905,627.28, 1,249,793.74 and 497,721.68

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Solution

The fourth proportional to 905,627.28, 1,249,793.74 and 497,721.68 is: 686,871.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,627.28 : 1,249,793.74 = 497,721.68 : x
  2. Step 2: Convert to fraction form
    905,627.28/1,249,793.74 = 497,721.68/x
  3. Step 3: Cross multiply
    905,627.28x = 1,249,793.74 × 497,721.68
  4. Step 4: Simplify right side
    905,627.28x = 622,049,439,926.28
  5. Step 5: Solve for x
    x = 622,049,439,926.28/905,627.28
  6. Step 6: Final answer
    x = 686,871.36

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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.