Home / 1,340,878.42-1,850,385.36-729,043.30

Finding the Fourth Proportional to 1,340,878.42, 1,850,385.36 and 729,043.30

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Solution

The fourth proportional to 1,340,878.42, 1,850,385.36 and 729,043.30 is: 1,006,065.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,878.42 : 1,850,385.36 = 729,043.30 : x
  2. Step 2: Convert to fraction form
    1,340,878.42/1,850,385.36 = 729,043.30/x
  3. Step 3: Cross multiply
    1,340,878.42x = 1,850,385.36 × 729,043.30
  4. Step 4: Simplify right side
    1,340,878.42x = 1,349,011,049,126.09
  5. Step 5: Solve for x
    x = 1,349,011,049,126.09/1,340,878.42
  6. Step 6: Final answer
    x = 1,006,065.15

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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.