Home / 691,128.84-1,036,623.15-185,624.13

Finding the Fourth Proportional to 691,128.84, 1,036,623.15 and 185,624.13

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Solution

The fourth proportional to 691,128.84, 1,036,623.15 and 185,624.13 is: 278,417.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,128.84 : 1,036,623.15 = 185,624.13 : x
  2. Step 2: Convert to fraction form
    691,128.84/1,036,623.15 = 185,624.13/x
  3. Step 3: Cross multiply
    691,128.84x = 1,036,623.15 × 185,624.13
  4. Step 4: Simplify right side
    691,128.84x = 192,422,270,356.61
  5. Step 5: Solve for x
    x = 192,422,270,356.61/691,128.84
  6. Step 6: Final answer
    x = 278,417.36

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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.