Home / 905,488.72-1,249,301.94-542,780.24

Finding the Fourth Proportional to 905,488.72, 1,249,301.94 and 542,780.24

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Solution

The fourth proportional to 905,488.72, 1,249,301.94 and 542,780.24 is: 748,873.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,488.72 : 1,249,301.94 = 542,780.24 : x
  2. Step 2: Convert to fraction form
    905,488.72/1,249,301.94 = 542,780.24/x
  3. Step 3: Cross multiply
    905,488.72x = 1,249,301.94 × 542,780.24
  4. Step 4: Simplify right side
    905,488.72x = 678,096,397,865.26
  5. Step 5: Solve for x
    x = 678,096,397,865.26/905,488.72
  6. Step 6: Final answer
    x = 748,873.38

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Double scale
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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.