Home / 2,319,421.78-3,200,977.38-1,287,125.02

Finding the Fourth Proportional to 2,319,421.78, 3,200,977.38 and 1,287,125.02

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Solution

The fourth proportional to 2,319,421.78, 3,200,977.38 and 1,287,125.02 is: 1,776,329.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319,421.78 : 3,200,977.38 = 1,287,125.02 : x
  2. Step 2: Convert to fraction form
    2,319,421.78/3,200,977.38 = 1,287,125.02/x
  3. Step 3: Cross multiply
    2,319,421.78x = 3,200,977.38 × 1,287,125.02
  4. Step 4: Simplify right side
    2,319,421.78x = 4,120,058,074,252.05
  5. Step 5: Solve for x
    x = 4,120,058,074,252.05/2,319,421.78
  6. Step 6: Final answer
    x = 1,776,329.82

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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.