Home / 817,875.81-1,226,719.86-218,883.70

Finding the Fourth Proportional to 817,875.81, 1,226,719.86 and 218,883.70

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Solution

The fourth proportional to 817,875.81, 1,226,719.86 and 218,883.70 is: 328,300.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,875.81 : 1,226,719.86 = 218,883.70 : x
  2. Step 2: Convert to fraction form
    817,875.81/1,226,719.86 = 218,883.70/x
  3. Step 3: Cross multiply
    817,875.81x = 1,226,719.86 × 218,883.70
  4. Step 4: Simplify right side
    817,875.81x = 268,508,982,532.87
  5. Step 5: Solve for x
    x = 268,508,982,532.87/817,875.81
  6. Step 6: Final answer
    x = 328,300.43

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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.