Home / 1,653,139.90-2,479,709.85-1,642,642.30

Finding the Fourth Proportional to 1,653,139.90, 2,479,709.85 and 1,642,642.30

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Solution

The fourth proportional to 1,653,139.90, 2,479,709.85 and 1,642,642.30 is: 2,463,963.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,653,139.90 : 2,479,709.85 = 1,642,642.30 : x
  2. Step 2: Convert to fraction form
    1,653,139.90/2,479,709.85 = 1,642,642.30/x
  3. Step 3: Cross multiply
    1,653,139.90x = 2,479,709.85 × 1,642,642.30
  4. Step 4: Simplify right side
    1,653,139.90x = 4,073,276,291,336.66
  5. Step 5: Solve for x
    x = 4,073,276,291,336.66/1,653,139.90
  6. Step 6: Final answer
    x = 2,463,963.45

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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.