Home / 915,924.20-1,373,886.30-418,260.20

Finding the Fourth Proportional to 915,924.20, 1,373,886.30 and 418,260.20

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Solution

The fourth proportional to 915,924.20, 1,373,886.30 and 418,260.20 is: 627,390.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,924.20 : 1,373,886.30 = 418,260.20 : x
  2. Step 2: Convert to fraction form
    915,924.20/1,373,886.30 = 418,260.20/x
  3. Step 3: Cross multiply
    915,924.20x = 1,373,886.30 × 418,260.20
  4. Step 4: Simplify right side
    915,924.20x = 574,641,958,615.26
  5. Step 5: Solve for x
    x = 574,641,958,615.26/915,924.20
  6. Step 6: Final answer
    x = 627,390.30

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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.