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Finding the Fourth Proportional to 662,655.80, 914,472.78 and 360,849.80

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Solution

The fourth proportional to 662,655.80, 914,472.78 and 360,849.80 is: 497,976.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,655.80 : 914,472.78 = 360,849.80 : x
  2. Step 2: Convert to fraction form
    662,655.80/914,472.78 = 360,849.80/x
  3. Step 3: Cross multiply
    662,655.80x = 914,472.78 × 360,849.80
  4. Step 4: Simplify right side
    662,655.80x = 329,987,319,768.44
  5. Step 5: Solve for x
    x = 329,987,319,768.44/662,655.80
  6. Step 6: Final answer
    x = 497,976.96

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1.5x scale

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.