Home / 1,192,145.56-1,645,095.36-648,280.78

Finding the Fourth Proportional to 1,192,145.56, 1,645,095.36 and 648,280.78

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Solution

The fourth proportional to 1,192,145.56, 1,645,095.36 and 648,280.78 is: 894,591.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192,145.56 : 1,645,095.36 = 648,280.78 : x
  2. Step 2: Convert to fraction form
    1,192,145.56/1,645,095.36 = 648,280.78/x
  3. Step 3: Cross multiply
    1,192,145.56x = 1,645,095.36 × 648,280.78
  4. Step 4: Simplify right side
    1,192,145.56x = 1,066,483,703,155.18
  5. Step 5: Solve for x
    x = 1,066,483,703,155.18/1,192,145.56
  6. Step 6: Final answer
    x = 894,591.85

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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.