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Finding the Fourth Proportional to 384,000.40, 574,688.40 and 336,761.20

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Solution

The fourth proportional to 384,000.40, 574,688.40 and 336,761.20 is: 503,991.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,000.40 : 574,688.40 = 336,761.20 : x
  2. Step 2: Convert to fraction form
    384,000.40/574,688.40 = 336,761.20/x
  3. Step 3: Cross multiply
    384,000.40x = 574,688.40 × 336,761.20
  4. Step 4: Simplify right side
    384,000.40x = 193,532,755,210.08
  5. Step 5: Solve for x
    x = 193,532,755,210.08/384,000.40
  6. Step 6: Final answer
    x = 503,991.03

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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.