Home / 634,889.46-876,158.10-348,436.20

Finding the Fourth Proportional to 634,889.46, 876,158.10 and 348,436.20

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Solution

The fourth proportional to 634,889.46, 876,158.10 and 348,436.20 is: 480,847.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,889.46 : 876,158.10 = 348,436.20 : x
  2. Step 2: Convert to fraction form
    634,889.46/876,158.10 = 348,436.20/x
  3. Step 3: Cross multiply
    634,889.46x = 876,158.10 × 348,436.20
  4. Step 4: Simplify right side
    634,889.46x = 305,285,198,963.22
  5. Step 5: Solve for x
    x = 305,285,198,963.22/634,889.46
  6. Step 6: Final answer
    x = 480,847.80

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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.