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Finding the Fourth Proportional to 702,000.60, 1,053,000.90 and 252,790.80

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Solution

The fourth proportional to 702,000.60, 1,053,000.90 and 252,790.80 is: 379,186.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,000.60 : 1,053,000.90 = 252,790.80 : x
  2. Step 2: Convert to fraction form
    702,000.60/1,053,000.90 = 252,790.80/x
  3. Step 3: Cross multiply
    702,000.60x = 1,053,000.90 × 252,790.80
  4. Step 4: Simplify right side
    702,000.60x = 266,188,939,911.72
  5. Step 5: Solve for x
    x = 266,188,939,911.72/702,000.60
  6. Step 6: Final answer
    x = 379,186.20

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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.