Home / 912,731.88-1,369,280.40-281,622

Finding the Fourth Proportional to 912,731.88, 1,369,280.40 and 281,622

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Solution

The fourth proportional to 912,731.88, 1,369,280.40 and 281,622 is: 422,489.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,731.88 : 1,369,280.40 = 281,622 : x
  2. Step 2: Convert to fraction form
    912,731.88/1,369,280.40 = 281,622/x
  3. Step 3: Cross multiply
    912,731.88x = 1,369,280.40 × 281,622
  4. Step 4: Simplify right side
    912,731.88x = 385,619,484,808.80
  5. Step 5: Solve for x
    x = 385,619,484,808.80/912,731.88
  6. Step 6: Final answer
    x = 422,489.33

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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.