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Finding the Fourth Proportional to 634,891.80, 876,182.58 and 348,409.56

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Solution

The fourth proportional to 634,891.80, 876,182.58 and 348,409.56 is: 480,822.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,891.80 : 876,182.58 = 348,409.56 : x
  2. Step 2: Convert to fraction form
    634,891.80/876,182.58 = 348,409.56/x
  3. Step 3: Cross multiply
    634,891.80x = 876,182.58 × 348,409.56
  4. Step 4: Simplify right side
    634,891.80x = 305,270,387,177.47
  5. Step 5: Solve for x
    x = 305,270,387,177.47/634,891.80
  6. Step 6: Final answer
    x = 480,822.70

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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.