Home / 886,734.90-1,330,289.10-287,649.24

Finding the Fourth Proportional to 886,734.90, 1,330,289.10 and 287,649.24

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Solution

The fourth proportional to 886,734.90, 1,330,289.10 and 287,649.24 is: 431,534.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,734.90 : 1,330,289.10 = 287,649.24 : x
  2. Step 2: Convert to fraction form
    886,734.90/1,330,289.10 = 287,649.24/x
  3. Step 3: Cross multiply
    886,734.90x = 1,330,289.10 × 287,649.24
  4. Step 4: Simplify right side
    886,734.90x = 382,656,648,595.28
  5. Step 5: Solve for x
    x = 382,656,648,595.28/886,734.90
  6. Step 6: Final answer
    x = 431,534.44

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Double scale
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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.