Home / 912,330.40-1,368,625.20-281,178.40

Finding the Fourth Proportional to 912,330.40, 1,368,625.20 and 281,178.40

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Solution

The fourth proportional to 912,330.40, 1,368,625.20 and 281,178.40 is: 421,807.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,330.40 : 1,368,625.20 = 281,178.40 : x
  2. Step 2: Convert to fraction form
    912,330.40/1,368,625.20 = 281,178.40/x
  3. Step 3: Cross multiply
    912,330.40x = 1,368,625.20 × 281,178.40
  4. Step 4: Simplify right side
    912,330.40x = 384,827,843,935.68
  5. Step 5: Solve for x
    x = 384,827,843,935.68/912,330.40
  6. Step 6: Final answer
    x = 421,807.54

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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.