Home / 1,191,141.32-1,786,780.08-338,146.25

Finding the Fourth Proportional to 1,191,141.32, 1,786,780.08 and 338,146.25

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Solution

The fourth proportional to 1,191,141.32, 1,786,780.08 and 338,146.25 is: 507,238.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,141.32 : 1,786,780.08 = 338,146.25 : x
  2. Step 2: Convert to fraction form
    1,191,141.32/1,786,780.08 = 338,146.25/x
  3. Step 3: Cross multiply
    1,191,141.32x = 1,786,780.08 × 338,146.25
  4. Step 4: Simplify right side
    1,191,141.32x = 604,192,974,692.80
  5. Step 5: Solve for x
    x = 604,192,974,692.80/1,191,141.32
  6. Step 6: Final answer
    x = 507,238.70

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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.