Home / 1,963,402.40-2,942,097.86-1,321,330.66

Finding the Fourth Proportional to 1,963,402.40, 2,942,097.86 and 1,321,330.66

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Solution

The fourth proportional to 1,963,402.40, 2,942,097.86 and 1,321,330.66 is: 1,979,973.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,963,402.40 : 2,942,097.86 = 1,321,330.66 : x
  2. Step 2: Convert to fraction form
    1,963,402.40/2,942,097.86 = 1,321,330.66/x
  3. Step 3: Cross multiply
    1,963,402.40x = 2,942,097.86 × 1,321,330.66
  4. Step 4: Simplify right side
    1,963,402.40x = 3,887,484,103,086.47
  5. Step 5: Solve for x
    x = 3,887,484,103,086.47/1,963,402.40
  6. Step 6: Final answer
    x = 1,979,973.18

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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.