Home / 840,403.38-1,260,616.01-279,437.88

Finding the Fourth Proportional to 840,403.38, 1,260,616.01 and 279,437.88

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Solution

The fourth proportional to 840,403.38, 1,260,616.01 and 279,437.88 is: 419,160.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,403.38 : 1,260,616.01 = 279,437.88 : x
  2. Step 2: Convert to fraction form
    840,403.38/1,260,616.01 = 279,437.88/x
  3. Step 3: Cross multiply
    840,403.38x = 1,260,616.01 × 279,437.88
  4. Step 4: Simplify right side
    840,403.38x = 352,263,865,328.46
  5. Step 5: Solve for x
    x = 352,263,865,328.46/840,403.38
  6. Step 6: Final answer
    x = 419,160.46

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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.