Home / 1,386,041.80-2,079,062.70-851,830.60

Finding the Fourth Proportional to 1,386,041.80, 2,079,062.70 and 851,830.60

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Solution

The fourth proportional to 1,386,041.80, 2,079,062.70 and 851,830.60 is: 1,277,745.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,041.80 : 2,079,062.70 = 851,830.60 : x
  2. Step 2: Convert to fraction form
    1,386,041.80/2,079,062.70 = 851,830.60/x
  3. Step 3: Cross multiply
    1,386,041.80x = 2,079,062.70 × 851,830.60
  4. Step 4: Simplify right side
    1,386,041.80x = 1,771,009,227,178.62
  5. Step 5: Solve for x
    x = 1,771,009,227,178.62/1,386,041.80
  6. Step 6: Final answer
    x = 1,277,745.90

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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.