Home / 689,998.26-1,034,647.38-315,700.50

Finding the Fourth Proportional to 689,998.26, 1,034,647.38 and 315,700.50

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Solution

The fourth proportional to 689,998.26, 1,034,647.38 and 315,700.50 is: 473,390.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,998.26 : 1,034,647.38 = 315,700.50 : x
  2. Step 2: Convert to fraction form
    689,998.26/1,034,647.38 = 315,700.50/x
  3. Step 3: Cross multiply
    689,998.26x = 1,034,647.38 × 315,700.50
  4. Step 4: Simplify right side
    689,998.26x = 326,638,695,189.69
  5. Step 5: Solve for x
    x = 326,638,695,189.69/689,998.26
  6. Step 6: Final answer
    x = 473,390.61

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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.