Home / 1,409,737.35-1,945,385.39-765,143.72

Finding the Fourth Proportional to 1,409,737.35, 1,945,385.39 and 765,143.72

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Solution

The fourth proportional to 1,409,737.35, 1,945,385.39 and 765,143.72 is: 1,055,870.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,737.35 : 1,945,385.39 = 765,143.72 : x
  2. Step 2: Convert to fraction form
    1,409,737.35/1,945,385.39 = 765,143.72/x
  3. Step 3: Cross multiply
    1,409,737.35x = 1,945,385.39 × 765,143.72
  4. Step 4: Simplify right side
    1,409,737.35x = 1,488,499,406,324.18
  5. Step 5: Solve for x
    x = 1,488,499,406,324.18/1,409,737.35
  6. Step 6: Final answer
    x = 1,055,870.02

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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.