Home / 1,340,211.32-1,849,460.46-728,349.56

Finding the Fourth Proportional to 1,340,211.32, 1,849,460.46 and 728,349.56

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Solution

The fourth proportional to 1,340,211.32, 1,849,460.46 and 728,349.56 is: 1,005,105.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,211.32 : 1,849,460.46 = 728,349.56 : x
  2. Step 2: Convert to fraction form
    1,340,211.32/1,849,460.46 = 728,349.56/x
  3. Step 3: Cross multiply
    1,340,211.32x = 1,849,460.46 × 728,349.56
  4. Step 4: Simplify right side
    1,340,211.32x = 1,347,053,712,278.40
  5. Step 5: Solve for x
    x = 1,347,053,712,278.40/1,340,211.32
  6. Step 6: Final answer
    x = 1,005,105.46

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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.