Home / 1,208,170.35-1,667,281.32-664,341.21

Finding the Fourth Proportional to 1,208,170.35, 1,667,281.32 and 664,341.21

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Solution

The fourth proportional to 1,208,170.35, 1,667,281.32 and 664,341.21 is: 916,794.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,170.35 : 1,667,281.32 = 664,341.21 : x
  2. Step 2: Convert to fraction form
    1,208,170.35/1,667,281.32 = 664,341.21/x
  3. Step 3: Cross multiply
    1,208,170.35x = 1,667,281.32 × 664,341.21
  4. Step 4: Simplify right side
    1,208,170.35x = 1,107,643,689,539.20
  5. Step 5: Solve for x
    x = 1,107,643,689,539.20/1,208,170.35
  6. Step 6: Final answer
    x = 916,794.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.