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Finding the Fourth Proportional to 802,201.80, 1,203,302.70 and 712,000.20

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Solution

The fourth proportional to 802,201.80, 1,203,302.70 and 712,000.20 is: 1,068,000.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,201.80 : 1,203,302.70 = 712,000.20 : x
  2. Step 2: Convert to fraction form
    802,201.80/1,203,302.70 = 712,000.20/x
  3. Step 3: Cross multiply
    802,201.80x = 1,203,302.70 × 712,000.20
  4. Step 4: Simplify right side
    802,201.80x = 856,751,763,060.54
  5. Step 5: Solve for x
    x = 856,751,763,060.54/802,201.80
  6. Step 6: Final answer
    x = 1,068,000.30

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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.