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Finding the Fourth Proportional to 572,964.30, 858,818.70 and 288,200.70

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Solution

The fourth proportional to 572,964.30, 858,818.70 and 288,200.70 is: 431,985.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,964.30 : 858,818.70 = 288,200.70 : x
  2. Step 2: Convert to fraction form
    572,964.30/858,818.70 = 288,200.70/x
  3. Step 3: Cross multiply
    572,964.30x = 858,818.70 × 288,200.70
  4. Step 4: Simplify right side
    572,964.30x = 247,512,150,513.09
  5. Step 5: Solve for x
    x = 247,512,150,513.09/572,964.30
  6. Step 6: Final answer
    x = 431,985.29

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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.