Home / 905,306.88-1,249,278.72-523,297.28

Finding the Fourth Proportional to 905,306.88, 1,249,278.72 and 523,297.28

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Solution

The fourth proportional to 905,306.88, 1,249,278.72 and 523,297.28 is: 722,124.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,306.88 : 1,249,278.72 = 523,297.28 : x
  2. Step 2: Convert to fraction form
    905,306.88/1,249,278.72 = 523,297.28/x
  3. Step 3: Cross multiply
    905,306.88x = 1,249,278.72 × 523,297.28
  4. Step 4: Simplify right side
    905,306.88x = 653,744,156,137.88
  5. Step 5: Solve for x
    x = 653,744,156,137.88/905,306.88
  6. Step 6: Final answer
    x = 722,124.37

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1.5x scale

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.