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Finding the Fourth Proportional to 1,148,208, 1,722,726.72 and 360,240

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Solution

The fourth proportional to 1,148,208, 1,722,726.72 and 360,240 is: 540,490.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148,208 : 1,722,726.72 = 360,240 : x
  2. Step 2: Convert to fraction form
    1,148,208/1,722,726.72 = 360,240/x
  3. Step 3: Cross multiply
    1,148,208x = 1,722,726.72 × 360,240
  4. Step 4: Simplify right side
    1,148,208x = 620,595,073,612.80
  5. Step 5: Solve for x
    x = 620,595,073,612.80/1,148,208
  6. Step 6: Final answer
    x = 540,490.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.