Home / 905,493.38-1,249,308.36-542,784.90

Finding the Fourth Proportional to 905,493.38, 1,249,308.36 and 542,784.90

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Solution

The fourth proportional to 905,493.38, 1,249,308.36 and 542,784.90 is: 748,879.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,493.38 : 1,249,308.36 = 542,784.90 : x
  2. Step 2: Convert to fraction form
    905,493.38/1,249,308.36 = 542,784.90/x
  3. Step 3: Cross multiply
    905,493.38x = 1,249,308.36 × 542,784.90
  4. Step 4: Simplify right side
    905,493.38x = 678,105,713,251.76
  5. Step 5: Solve for x
    x = 678,105,713,251.76/905,493.38
  6. Step 6: Final answer
    x = 748,879.81

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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.