Home / 759,949.60-1,139,924.40-310,375.30

Finding the Fourth Proportional to 759,949.60, 1,139,924.40 and 310,375.30

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Solution

The fourth proportional to 759,949.60, 1,139,924.40 and 310,375.30 is: 465,562.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,949.60 : 1,139,924.40 = 310,375.30 : x
  2. Step 2: Convert to fraction form
    759,949.60/1,139,924.40 = 310,375.30/x
  3. Step 3: Cross multiply
    759,949.60x = 1,139,924.40 × 310,375.30
  4. Step 4: Simplify right side
    759,949.60x = 353,804,377,627.32
  5. Step 5: Solve for x
    x = 353,804,377,627.32/759,949.60
  6. Step 6: Final answer
    x = 465,562.95

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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.