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Finding the Fourth Proportional to 653,416.07, 979,902.90 and 248,512.05

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Solution

The fourth proportional to 653,416.07, 979,902.90 and 248,512.05 is: 372,683.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,416.07 : 979,902.90 = 248,512.05 : x
  2. Step 2: Convert to fraction form
    653,416.07/979,902.90 = 248,512.05/x
  3. Step 3: Cross multiply
    653,416.07x = 979,902.90 × 248,512.05
  4. Step 4: Simplify right side
    653,416.07x = 243,517,678,479.95
  5. Step 5: Solve for x
    x = 243,517,678,479.95/653,416.07
  6. Step 6: Final answer
    x = 372,683.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.