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Finding the Fourth Proportional to 662,644.80, 914,457.60 and 360,838.80

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Solution

The fourth proportional to 662,644.80, 914,457.60 and 360,838.80 is: 497,961.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,644.80 : 914,457.60 = 360,838.80 : x
  2. Step 2: Convert to fraction form
    662,644.80/914,457.60 = 360,838.80/x
  3. Step 3: Cross multiply
    662,644.80x = 914,457.60 × 360,838.80
  4. Step 4: Simplify right side
    662,644.80x = 329,971,783,034.88
  5. Step 5: Solve for x
    x = 329,971,783,034.88/662,644.80
  6. Step 6: Final answer
    x = 497,961.78

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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.