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Finding the Fourth Proportional to 397,630.80, 596,446.20 and 368,762.40

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Solution

The fourth proportional to 397,630.80, 596,446.20 and 368,762.40 is: 553,143.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,630.80 : 596,446.20 = 368,762.40 : x
  2. Step 2: Convert to fraction form
    397,630.80/596,446.20 = 368,762.40/x
  3. Step 3: Cross multiply
    397,630.80x = 596,446.20 × 368,762.40
  4. Step 4: Simplify right side
    397,630.80x = 219,946,932,182.88
  5. Step 5: Solve for x
    x = 219,946,932,182.88/397,630.80
  6. Step 6: Final answer
    x = 553,143.60

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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.