Home / 1,380,679.68-2,071,113.28-469,490.96

Finding the Fourth Proportional to 1,380,679.68, 2,071,113.28 and 469,490.96

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Solution

The fourth proportional to 1,380,679.68, 2,071,113.28 and 469,490.96 is: 704,268.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,679.68 : 2,071,113.28 = 469,490.96 : x
  2. Step 2: Convert to fraction form
    1,380,679.68/2,071,113.28 = 469,490.96/x
  3. Step 3: Cross multiply
    1,380,679.68x = 2,071,113.28 × 469,490.96
  4. Step 4: Simplify right side
    1,380,679.68x = 972,368,962,095.95
  5. Step 5: Solve for x
    x = 972,368,962,095.95/1,380,679.68
  6. Step 6: Final answer
    x = 704,268.32

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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.