Home / 891,251.96-1,336,921.74-291,970.28

Finding the Fourth Proportional to 891,251.96, 1,336,921.74 and 291,970.28

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Solution

The fourth proportional to 891,251.96, 1,336,921.74 and 291,970.28 is: 437,969.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,251.96 : 1,336,921.74 = 291,970.28 : x
  2. Step 2: Convert to fraction form
    891,251.96/1,336,921.74 = 291,970.28/x
  3. Step 3: Cross multiply
    891,251.96x = 1,336,921.74 × 291,970.28
  4. Step 4: Simplify right side
    891,251.96x = 390,341,414,765.89
  5. Step 5: Solve for x
    x = 390,341,414,765.89/891,251.96
  6. Step 6: Final answer
    x = 437,969.77

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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.