Home / 691,129.84-1,036,624.65-185,625.13

Finding the Fourth Proportional to 691,129.84, 1,036,624.65 and 185,625.13

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Solution

The fourth proportional to 691,129.84, 1,036,624.65 and 185,625.13 is: 278,418.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,129.84 : 1,036,624.65 = 185,625.13 : x
  2. Step 2: Convert to fraction form
    691,129.84/1,036,624.65 = 185,625.13/x
  3. Step 3: Cross multiply
    691,129.84x = 1,036,624.65 × 185,625.13
  4. Step 4: Simplify right side
    691,129.84x = 192,423,585,417.46
  5. Step 5: Solve for x
    x = 192,423,585,417.46/691,129.84
  6. Step 6: Final answer
    x = 278,418.86

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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.