Home / 1,386,047.80-2,079,071.70-851,836.60

Finding the Fourth Proportional to 1,386,047.80, 2,079,071.70 and 851,836.60

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Solution

The fourth proportional to 1,386,047.80, 2,079,071.70 and 851,836.60 is: 1,277,754.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,047.80 : 2,079,071.70 = 851,836.60 : x
  2. Step 2: Convert to fraction form
    1,386,047.80/2,079,071.70 = 851,836.60/x
  3. Step 3: Cross multiply
    1,386,047.80x = 2,079,071.70 × 851,836.60
  4. Step 4: Simplify right side
    1,386,047.80x = 1,771,029,368,084.22
  5. Step 5: Solve for x
    x = 1,771,029,368,084.22/1,386,047.80
  6. Step 6: Final answer
    x = 1,277,754.90

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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.