Home / 861,136.72-1,291,703.83-292,576.86

Finding the Fourth Proportional to 861,136.72, 1,291,703.83 and 292,576.86

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Solution

The fourth proportional to 861,136.72, 1,291,703.83 and 292,576.86 is: 438,864.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,136.72 : 1,291,703.83 = 292,576.86 : x
  2. Step 2: Convert to fraction form
    861,136.72/1,291,703.83 = 292,576.86/x
  3. Step 3: Cross multiply
    861,136.72x = 1,291,703.83 × 292,576.86
  4. Step 4: Simplify right side
    861,136.72x = 377,922,649,899.93
  5. Step 5: Solve for x
    x = 377,922,649,899.93/861,136.72
  6. Step 6: Final answer
    x = 438,864.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.