Home / 1,319,181.60-1,978,772.40-759,309.60

Finding the Fourth Proportional to 1,319,181.60, 1,978,772.40 and 759,309.60

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Solution

The fourth proportional to 1,319,181.60, 1,978,772.40 and 759,309.60 is: 1,138,964.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,181.60 : 1,978,772.40 = 759,309.60 : x
  2. Step 2: Convert to fraction form
    1,319,181.60/1,978,772.40 = 759,309.60/x
  3. Step 3: Cross multiply
    1,319,181.60x = 1,978,772.40 × 759,309.60
  4. Step 4: Simplify right side
    1,319,181.60x = 1,502,500,879,535.04
  5. Step 5: Solve for x
    x = 1,502,500,879,535.04/1,319,181.60
  6. Step 6: Final answer
    x = 1,138,964.40

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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.