Home / 905,491.72-1,249,306.08-542,783.24

Finding the Fourth Proportional to 905,491.72, 1,249,306.08 and 542,783.24

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Solution

The fourth proportional to 905,491.72, 1,249,306.08 and 542,783.24 is: 748,877.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,491.72 : 1,249,306.08 = 542,783.24 : x
  2. Step 2: Convert to fraction form
    905,491.72/1,249,306.08 = 542,783.24/x
  3. Step 3: Cross multiply
    905,491.72x = 1,249,306.08 × 542,783.24
  4. Step 4: Simplify right side
    905,491.72x = 678,102,401,854.10
  5. Step 5: Solve for x
    x = 678,102,401,854.10/905,491.72
  6. Step 6: Final answer
    x = 748,877.53

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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.