Home / 2,087,006.80-3,130,218.60-667,206.40

Finding the Fourth Proportional to 2,087,006.80, 3,130,218.60 and 667,206.40

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Solution

The fourth proportional to 2,087,006.80, 3,130,218.60 and 667,206.40 is: 1,000,716.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087,006.80 : 3,130,218.60 = 667,206.40 : x
  2. Step 2: Convert to fraction form
    2,087,006.80/3,130,218.60 = 667,206.40/x
  3. Step 3: Cross multiply
    2,087,006.80x = 3,130,218.60 × 667,206.40
  4. Step 4: Simplify right side
    2,087,006.80x = 2,088,501,883,319.04
  5. Step 5: Solve for x
    x = 2,088,501,883,319.04/2,087,006.80
  6. Step 6: Final answer
    x = 1,000,716.38

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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.