Home / 482,853.30-666,420.02-278,867.56

Finding the Fourth Proportional to 482,853.30, 666,420.02 and 278,867.56

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Solution

The fourth proportional to 482,853.30, 666,420.02 and 278,867.56 is: 384,884.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,853.30 : 666,420.02 = 278,867.56 : x
  2. Step 2: Convert to fraction form
    482,853.30/666,420.02 = 278,867.56/x
  3. Step 3: Cross multiply
    482,853.30x = 666,420.02 × 278,867.56
  4. Step 4: Simplify right side
    482,853.30x = 185,842,921,852.16
  5. Step 5: Solve for x
    x = 185,842,921,852.16/482,853.30
  6. Step 6: Final answer
    x = 384,884.85

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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.