Home / 689,572.50-1,034,162.73-290,304.06

Finding the Fourth Proportional to 689,572.50, 1,034,162.73 and 290,304.06

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Solution

The fourth proportional to 689,572.50, 1,034,162.73 and 290,304.06 is: 435,373.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,572.50 : 1,034,162.73 = 290,304.06 : x
  2. Step 2: Convert to fraction form
    689,572.50/1,034,162.73 = 290,304.06/x
  3. Step 3: Cross multiply
    689,572.50x = 1,034,162.73 × 290,304.06
  4. Step 4: Simplify right side
    689,572.50x = 300,221,639,219.68
  5. Step 5: Solve for x
    x = 300,221,639,219.68/689,572.50
  6. Step 6: Final answer
    x = 435,373.57

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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.