Home / 1,380,061.44-1,904,465.28-776,448

Finding the Fourth Proportional to 1,380,061.44, 1,904,465.28 and 776,448

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Solution

The fourth proportional to 1,380,061.44, 1,904,465.28 and 776,448 is: 1,071,487.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,061.44 : 1,904,465.28 = 776,448 : x
  2. Step 2: Convert to fraction form
    1,380,061.44/1,904,465.28 = 776,448/x
  3. Step 3: Cross multiply
    1,380,061.44x = 1,904,465.28 × 776,448
  4. Step 4: Simplify right side
    1,380,061.44x = 1,478,718,257,725.44
  5. Step 5: Solve for x
    x = 1,478,718,257,725.44/1,380,061.44
  6. Step 6: Final answer
    x = 1,071,487.26

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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.