Home / 780,042.40-1,170,063.60-654,071.20

Finding the Fourth Proportional to 780,042.40, 1,170,063.60 and 654,071.20

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Solution

The fourth proportional to 780,042.40, 1,170,063.60 and 654,071.20 is: 981,106.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,042.40 : 1,170,063.60 = 654,071.20 : x
  2. Step 2: Convert to fraction form
    780,042.40/1,170,063.60 = 654,071.20/x
  3. Step 3: Cross multiply
    780,042.40x = 1,170,063.60 × 654,071.20
  4. Step 4: Simplify right side
    780,042.40x = 765,304,902,928.32
  5. Step 5: Solve for x
    x = 765,304,902,928.32/780,042.40
  6. Step 6: Final answer
    x = 981,106.80

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1.5x scale

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.