Home / 1,290,489.60-1,935,734.40-730,617.60

Finding the Fourth Proportional to 1,290,489.60, 1,935,734.40 and 730,617.60

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Solution

The fourth proportional to 1,290,489.60, 1,935,734.40 and 730,617.60 is: 1,095,926.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,489.60 : 1,935,734.40 = 730,617.60 : x
  2. Step 2: Convert to fraction form
    1,290,489.60/1,935,734.40 = 730,617.60/x
  3. Step 3: Cross multiply
    1,290,489.60x = 1,935,734.40 × 730,617.60
  4. Step 4: Simplify right side
    1,290,489.60x = 1,414,281,621,565.44
  5. Step 5: Solve for x
    x = 1,414,281,621,565.44/1,290,489.60
  6. Step 6: Final answer
    x = 1,095,926.40

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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.