Home / 936,729.30-1,404,765.90-487,300.80

Finding the Fourth Proportional to 936,729.30, 1,404,765.90 and 487,300.80

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Solution

The fourth proportional to 936,729.30, 1,404,765.90 and 487,300.80 is: 730,780.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,729.30 : 1,404,765.90 = 487,300.80 : x
  2. Step 2: Convert to fraction form
    936,729.30/1,404,765.90 = 487,300.80/x
  3. Step 3: Cross multiply
    936,729.30x = 1,404,765.90 × 487,300.80
  4. Step 4: Simplify right side
    936,729.30x = 684,543,546,882.72
  5. Step 5: Solve for x
    x = 684,543,546,882.72/936,729.30
  6. Step 6: Final answer
    x = 730,780.54

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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.