Home / 891,369.78-1,336,923.15-260,114.10

Finding the Fourth Proportional to 891,369.78, 1,336,923.15 and 260,114.10

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Solution

The fourth proportional to 891,369.78, 1,336,923.15 and 260,114.10 is: 390,132.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,369.78 : 1,336,923.15 = 260,114.10 : x
  2. Step 2: Convert to fraction form
    891,369.78/1,336,923.15 = 260,114.10/x
  3. Step 3: Cross multiply
    891,369.78x = 1,336,923.15 × 260,114.10
  4. Step 4: Simplify right side
    891,369.78x = 347,752,561,931.42
  5. Step 5: Solve for x
    x = 347,752,561,931.42/891,369.78
  6. Step 6: Final answer
    x = 390,132.77

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Double scale
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Similar ratio
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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.