Home / 738,644.85-1,108,085.73-312,184.83

Finding the Fourth Proportional to 738,644.85, 1,108,085.73 and 312,184.83

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Solution

The fourth proportional to 738,644.85, 1,108,085.73 and 312,184.83 is: 468,327.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,644.85 : 1,108,085.73 = 312,184.83 : x
  2. Step 2: Convert to fraction form
    738,644.85/1,108,085.73 = 312,184.83/x
  3. Step 3: Cross multiply
    738,644.85x = 1,108,085.73 × 312,184.83
  4. Step 4: Simplify right side
    738,644.85x = 345,927,555,245.48
  5. Step 5: Solve for x
    x = 345,927,555,245.48/738,644.85
  6. Step 6: Final answer
    x = 468,327.31

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Double scale
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Similar ratio
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1.5x scale

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.