Home / 780,043.80-1,170,065.70-306,744.60

Finding the Fourth Proportional to 780,043.80, 1,170,065.70 and 306,744.60

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Solution

The fourth proportional to 780,043.80, 1,170,065.70 and 306,744.60 is: 460,116.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,043.80 : 1,170,065.70 = 306,744.60 : x
  2. Step 2: Convert to fraction form
    780,043.80/1,170,065.70 = 306,744.60/x
  3. Step 3: Cross multiply
    780,043.80x = 1,170,065.70 × 306,744.60
  4. Step 4: Simplify right side
    780,043.80x = 358,911,335,120.22
  5. Step 5: Solve for x
    x = 358,911,335,120.22/780,043.80
  6. Step 6: Final answer
    x = 460,116.90

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Similar ratio
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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.