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Finding the Fourth Proportional to 702,970.60, 1,054,455.90 and 253,760.80

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Solution

The fourth proportional to 702,970.60, 1,054,455.90 and 253,760.80 is: 380,641.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,970.60 : 1,054,455.90 = 253,760.80 : x
  2. Step 2: Convert to fraction form
    702,970.60/1,054,455.90 = 253,760.80/x
  3. Step 3: Cross multiply
    702,970.60x = 1,054,455.90 × 253,760.80
  4. Step 4: Simplify right side
    702,970.60x = 267,579,572,748.72
  5. Step 5: Solve for x
    x = 267,579,572,748.72/702,970.60
  6. Step 6: Final answer
    x = 380,641.20

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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.