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Finding the Fourth Proportional to 902,000.22, 1,353,086.22 and 253,574.78

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Solution

The fourth proportional to 902,000.22, 1,353,086.22 and 253,574.78 is: 380,386.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,000.22 : 1,353,086.22 = 253,574.78 : x
  2. Step 2: Convert to fraction form
    902,000.22/1,353,086.22 = 253,574.78/x
  3. Step 3: Cross multiply
    902,000.22x = 1,353,086.22 × 253,574.78
  4. Step 4: Simplify right side
    902,000.22x = 343,108,533,792.10
  5. Step 5: Solve for x
    x = 343,108,533,792.10/902,000.22
  6. Step 6: Final answer
    x = 380,386.31

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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.