Home / 689,755.12-1,034,331.05-347,988.27

Finding the Fourth Proportional to 689,755.12, 1,034,331.05 and 347,988.27

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Solution

The fourth proportional to 689,755.12, 1,034,331.05 and 347,988.27 is: 521,830.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,755.12 : 1,034,331.05 = 347,988.27 : x
  2. Step 2: Convert to fraction form
    689,755.12/1,034,331.05 = 347,988.27/x
  3. Step 3: Cross multiply
    689,755.12x = 1,034,331.05 × 347,988.27
  4. Step 4: Simplify right side
    689,755.12x = 359,935,070,956.84
  5. Step 5: Solve for x
    x = 359,935,070,956.84/689,755.12
  6. Step 6: Final answer
    x = 521,830.23

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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.