Home / 1,242,989.28-1,864,524-344,439.84

Finding the Fourth Proportional to 1,242,989.28, 1,864,524 and 344,439.84

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Solution

The fourth proportional to 1,242,989.28, 1,864,524 and 344,439.84 is: 516,670.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,989.28 : 1,864,524 = 344,439.84 : x
  2. Step 2: Convert to fraction form
    1,242,989.28/1,864,524 = 344,439.84/x
  3. Step 3: Cross multiply
    1,242,989.28x = 1,864,524 × 344,439.84
  4. Step 4: Simplify right side
    1,242,989.28x = 642,216,348,236.16
  5. Step 5: Solve for x
    x = 642,216,348,236.16/1,242,989.28
  6. Step 6: Final answer
    x = 516,670.87

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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.