Home / 817,642.04-1,226,454.69-210,427.97

Finding the Fourth Proportional to 817,642.04, 1,226,454.69 and 210,427.97

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Solution

The fourth proportional to 817,642.04, 1,226,454.69 and 210,427.97 is: 315,639.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,642.04 : 1,226,454.69 = 210,427.97 : x
  2. Step 2: Convert to fraction form
    817,642.04/1,226,454.69 = 210,427.97/x
  3. Step 3: Cross multiply
    817,642.04x = 1,226,454.69 × 210,427.97
  4. Step 4: Simplify right side
    817,642.04x = 258,080,377,040.70
  5. Step 5: Solve for x
    x = 258,080,377,040.70/817,642.04
  6. Step 6: Final answer
    x = 315,639.81

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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.