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Finding the Fourth Proportional to 398,901.40, 597,545.70 and 248,680.60

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Solution

The fourth proportional to 398,901.40, 597,545.70 and 248,680.60 is: 372,518.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,901.40 : 597,545.70 = 248,680.60 : x
  2. Step 2: Convert to fraction form
    398,901.40/597,545.70 = 248,680.60/x
  3. Step 3: Cross multiply
    398,901.40x = 597,545.70 × 248,680.60
  4. Step 4: Simplify right side
    398,901.40x = 148,598,023,203.42
  5. Step 5: Solve for x
    x = 148,598,023,203.42/398,901.40
  6. Step 6: Final answer
    x = 372,518.18

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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.