Home / 418,947.18-628,326.09-119,421.33

Finding the Fourth Proportional to 418,947.18, 628,326.09 and 119,421.33

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Solution

The fourth proportional to 418,947.18, 628,326.09 and 119,421.33 is: 179,105.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,947.18 : 628,326.09 = 119,421.33 : x
  2. Step 2: Convert to fraction form
    418,947.18/628,326.09 = 119,421.33/x
  3. Step 3: Cross multiply
    418,947.18x = 628,326.09 × 119,421.33
  4. Step 4: Simplify right side
    418,947.18x = 75,035,537,341.50
  5. Step 5: Solve for x
    x = 75,035,537,341.50/418,947.18
  6. Step 6: Final answer
    x = 179,105.01

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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.