Home / 689,701.03-1,034,539.59-310,353.32

Finding the Fourth Proportional to 689,701.03, 1,034,539.59 and 310,353.32

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Solution

The fourth proportional to 689,701.03, 1,034,539.59 and 310,353.32 is: 465,524.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,701.03 : 1,034,539.59 = 310,353.32 : x
  2. Step 2: Convert to fraction form
    689,701.03/1,034,539.59 = 310,353.32/x
  3. Step 3: Cross multiply
    689,701.03x = 1,034,539.59 × 310,353.32
  4. Step 4: Simplify right side
    689,701.03x = 321,072,800,178.11
  5. Step 5: Solve for x
    x = 321,072,800,178.11/689,701.03
  6. Step 6: Final answer
    x = 465,524.61

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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.