Home / 2,652,139.80-3,978,209.70-657,595.80

Finding the Fourth Proportional to 2,652,139.80, 3,978,209.70 and 657,595.80

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Solution

The fourth proportional to 2,652,139.80, 3,978,209.70 and 657,595.80 is: 986,393.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,652,139.80 : 3,978,209.70 = 657,595.80 : x
  2. Step 2: Convert to fraction form
    2,652,139.80/3,978,209.70 = 657,595.80/x
  3. Step 3: Cross multiply
    2,652,139.80x = 3,978,209.70 × 657,595.80
  4. Step 4: Simplify right side
    2,652,139.80x = 2,616,053,990,239.26
  5. Step 5: Solve for x
    x = 2,616,053,990,239.26/2,652,139.80
  6. Step 6: Final answer
    x = 986,393.70

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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.