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Finding the Fourth Proportional to 398,225.20, 597,337.80 and 367,812.40

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Solution

The fourth proportional to 398,225.20, 597,337.80 and 367,812.40 is: 551,718.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,225.20 : 597,337.80 = 367,812.40 : x
  2. Step 2: Convert to fraction form
    398,225.20/597,337.80 = 367,812.40/x
  3. Step 3: Cross multiply
    398,225.20x = 597,337.80 × 367,812.40
  4. Step 4: Simplify right side
    398,225.20x = 219,708,249,828.72
  5. Step 5: Solve for x
    x = 219,708,249,828.72/398,225.20
  6. Step 6: Final answer
    x = 551,718.60

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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.