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Finding the Fourth Proportional to 666,573.92, 919,868.28 and 360,649.52

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Solution

The fourth proportional to 666,573.92, 919,868.28 and 360,649.52 is: 497,694.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,573.92 : 919,868.28 = 360,649.52 : x
  2. Step 2: Convert to fraction form
    666,573.92/919,868.28 = 360,649.52/x
  3. Step 3: Cross multiply
    666,573.92x = 919,868.28 × 360,649.52
  4. Step 4: Simplify right side
    666,573.92x = 331,750,053,645.23
  5. Step 5: Solve for x
    x = 331,750,053,645.23/666,573.92
  6. Step 6: Final answer
    x = 497,694.32

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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.