Home / 2,639,702.88-3,642,768.72-1,432,478.88

Finding the Fourth Proportional to 2,639,702.88, 3,642,768.72 and 1,432,478.88

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Solution

The fourth proportional to 2,639,702.88, 3,642,768.72 and 1,432,478.88 is: 1,976,809.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639,702.88 : 3,642,768.72 = 1,432,478.88 : x
  2. Step 2: Convert to fraction form
    2,639,702.88/3,642,768.72 = 1,432,478.88/x
  3. Step 3: Cross multiply
    2,639,702.88x = 3,642,768.72 × 1,432,478.88
  4. Step 4: Simplify right side
    2,639,702.88x = 5,218,189,256,124.63
  5. Step 5: Solve for x
    x = 5,218,189,256,124.63/2,639,702.88
  6. Step 6: Final answer
    x = 1,976,809.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.