Home / 1,380,065.44-1,904,470.80-776,452

Finding the Fourth Proportional to 1,380,065.44, 1,904,470.80 and 776,452

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Solution

The fourth proportional to 1,380,065.44, 1,904,470.80 and 776,452 is: 1,071,492.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,065.44 : 1,904,470.80 = 776,452 : x
  2. Step 2: Convert to fraction form
    1,380,065.44/1,904,470.80 = 776,452/x
  3. Step 3: Cross multiply
    1,380,065.44x = 1,904,470.80 × 776,452
  4. Step 4: Simplify right side
    1,380,065.44x = 1,478,730,161,601.60
  5. Step 5: Solve for x
    x = 1,478,730,161,601.60/1,380,065.44
  6. Step 6: Final answer
    x = 1,071,492.78

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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.