Home / 2,121,473.64-3,181,223.87-772,697.28

Finding the Fourth Proportional to 2,121,473.64, 3,181,223.87 and 772,697.28

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Solution

The fourth proportional to 2,121,473.64, 3,181,223.87 and 772,697.28 is: 1,158,686.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121,473.64 : 3,181,223.87 = 772,697.28 : x
  2. Step 2: Convert to fraction form
    2,121,473.64/3,181,223.87 = 772,697.28/x
  3. Step 3: Cross multiply
    2,121,473.64x = 3,181,223.87 × 772,697.28
  4. Step 4: Simplify right side
    2,121,473.64x = 2,458,123,031,420.07
  5. Step 5: Solve for x
    x = 2,458,123,031,420.07/2,121,473.64
  6. Step 6: Final answer
    x = 1,158,686.58

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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.