Home / 2,128,209.80-3,192,314.70-708,312.20

Finding the Fourth Proportional to 2,128,209.80, 3,192,314.70 and 708,312.20

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Solution

The fourth proportional to 2,128,209.80, 3,192,314.70 and 708,312.20 is: 1,062,468.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,209.80 : 3,192,314.70 = 708,312.20 : x
  2. Step 2: Convert to fraction form
    2,128,209.80/3,192,314.70 = 708,312.20/x
  3. Step 3: Cross multiply
    2,128,209.80x = 3,192,314.70 × 708,312.20
  4. Step 4: Simplify right side
    2,128,209.80x = 2,261,155,448,249.34
  5. Step 5: Solve for x
    x = 2,261,155,448,249.34/2,128,209.80
  6. Step 6: Final answer
    x = 1,062,468.30

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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.