Home / 891,375.10-1,336,931.42-292,399.54

Finding the Fourth Proportional to 891,375.10, 1,336,931.42 and 292,399.54

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Solution

The fourth proportional to 891,375.10, 1,336,931.42 and 292,399.54 is: 438,556.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,375.10 : 1,336,931.42 = 292,399.54 : x
  2. Step 2: Convert to fraction form
    891,375.10/1,336,931.42 = 292,399.54/x
  3. Step 3: Cross multiply
    891,375.10x = 1,336,931.42 × 292,399.54
  4. Step 4: Simplify right side
    891,375.10x = 390,918,132,219.55
  5. Step 5: Solve for x
    x = 390,918,132,219.55/891,375.10
  6. Step 6: Final answer
    x = 438,556.26

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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.