Home / 780,333.60-1,170,025.20-306,451.20

Finding the Fourth Proportional to 780,333.60, 1,170,025.20 and 306,451.20

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Solution

The fourth proportional to 780,333.60, 1,170,025.20 and 306,451.20 is: 459,490.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,333.60 : 1,170,025.20 = 306,451.20 : x
  2. Step 2: Convert to fraction form
    780,333.60/1,170,025.20 = 306,451.20/x
  3. Step 3: Cross multiply
    780,333.60x = 1,170,025.20 × 306,451.20
  4. Step 4: Simplify right side
    780,333.60x = 358,555,626,570.24
  5. Step 5: Solve for x
    x = 358,555,626,570.24/780,333.60
  6. Step 6: Final answer
    x = 459,490.18

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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.