Home / 685,111.10-1,027,666.65-652,451.90

Finding the Fourth Proportional to 685,111.10, 1,027,666.65 and 652,451.90

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Solution

The fourth proportional to 685,111.10, 1,027,666.65 and 652,451.90 is: 978,677.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,111.10 : 1,027,666.65 = 652,451.90 : x
  2. Step 2: Convert to fraction form
    685,111.10/1,027,666.65 = 652,451.90/x
  3. Step 3: Cross multiply
    685,111.10x = 1,027,666.65 × 652,451.90
  4. Step 4: Simplify right side
    685,111.10x = 670,503,058,359.14
  5. Step 5: Solve for x
    x = 670,503,058,359.14/685,111.10
  6. Step 6: Final answer
    x = 978,677.85

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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.