Home / 1,331,641.76-1,997,661.72-490,129.52

Finding the Fourth Proportional to 1,331,641.76, 1,997,661.72 and 490,129.52

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Solution

The fourth proportional to 1,331,641.76, 1,997,661.72 and 490,129.52 is: 735,267.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,641.76 : 1,997,661.72 = 490,129.52 : x
  2. Step 2: Convert to fraction form
    1,331,641.76/1,997,661.72 = 490,129.52/x
  3. Step 3: Cross multiply
    1,331,641.76x = 1,997,661.72 × 490,129.52
  4. Step 4: Simplify right side
    1,331,641.76x = 979,112,979,945.97
  5. Step 5: Solve for x
    x = 979,112,979,945.97/1,331,641.76
  6. Step 6: Final answer
    x = 735,267.55

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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.