Home / 853,904.20-1,280,510.70-292,649.80

Finding the Fourth Proportional to 853,904.20, 1,280,510.70 and 292,649.80

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Solution

The fourth proportional to 853,904.20, 1,280,510.70 and 292,649.80 is: 438,856.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,904.20 : 1,280,510.70 = 292,649.80 : x
  2. Step 2: Convert to fraction form
    853,904.20/1,280,510.70 = 292,649.80/x
  3. Step 3: Cross multiply
    853,904.20x = 1,280,510.70 × 292,649.80
  4. Step 4: Simplify right side
    853,904.20x = 374,741,200,252.86
  5. Step 5: Solve for x
    x = 374,741,200,252.86/853,904.20
  6. Step 6: Final answer
    x = 438,856.26

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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.