Home / 983,447.28-1,474,417.62-309,138.48

Finding the Fourth Proportional to 983,447.28, 1,474,417.62 and 309,138.48

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Solution

The fourth proportional to 983,447.28, 1,474,417.62 and 309,138.48 is: 463,470.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,447.28 : 1,474,417.62 = 309,138.48 : x
  2. Step 2: Convert to fraction form
    983,447.28/1,474,417.62 = 309,138.48/x
  3. Step 3: Cross multiply
    983,447.28x = 1,474,417.62 × 309,138.48
  4. Step 4: Simplify right side
    983,447.28x = 455,799,221,932.02
  5. Step 5: Solve for x
    x = 455,799,221,932.02/983,447.28
  6. Step 6: Final answer
    x = 463,470.93

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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.