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Finding the Fourth Proportional to 458,780.46, 633,186.01 and 330,144.76

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Solution

The fourth proportional to 458,780.46, 633,186.01 and 330,144.76 is: 455,649.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,780.46 : 633,186.01 = 330,144.76 : x
  2. Step 2: Convert to fraction form
    458,780.46/633,186.01 = 330,144.76/x
  3. Step 3: Cross multiply
    458,780.46x = 633,186.01 × 330,144.76
  4. Step 4: Simplify right side
    458,780.46x = 209,043,044,510.97
  5. Step 5: Solve for x
    x = 209,043,044,510.97/458,780.46
  6. Step 6: Final answer
    x = 455,649.41

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Half scale
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Double scale
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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.