Home / 1,518,643.65-2,278,006.38-665,276.25

Finding the Fourth Proportional to 1,518,643.65, 2,278,006.38 and 665,276.25

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Solution

The fourth proportional to 1,518,643.65, 2,278,006.38 and 665,276.25 is: 997,932.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,518,643.65 : 2,278,006.38 = 665,276.25 : x
  2. Step 2: Convert to fraction form
    1,518,643.65/2,278,006.38 = 665,276.25/x
  3. Step 3: Cross multiply
    1,518,643.65x = 2,278,006.38 × 665,276.25
  4. Step 4: Simplify right side
    1,518,643.65x = 1,515,503,541,962.48
  5. Step 5: Solve for x
    x = 1,515,503,541,962.48/1,518,643.65
  6. Step 6: Final answer
    x = 997,932.29

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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.