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Finding the Fourth Proportional to 482,897.89, 666,393.04 and 278,947.99

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Solution

The fourth proportional to 482,897.89, 666,393.04 and 278,947.99 is: 384,944.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,897.89 : 666,393.04 = 278,947.99 : x
  2. Step 2: Convert to fraction form
    482,897.89/666,393.04 = 278,947.99/x
  3. Step 3: Cross multiply
    482,897.89x = 666,393.04 × 278,947.99
  4. Step 4: Simplify right side
    482,897.89x = 185,888,999,057.99
  5. Step 5: Solve for x
    x = 185,888,999,057.99/482,897.89
  6. Step 6: Final answer
    x = 384,944.73

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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.