Home / 786,443.85-1,179,474.03-217,810.17

Finding the Fourth Proportional to 786,443.85, 1,179,474.03 and 217,810.17

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Solution

The fourth proportional to 786,443.85, 1,179,474.03 and 217,810.17 is: 326,662.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,443.85 : 1,179,474.03 = 217,810.17 : x
  2. Step 2: Convert to fraction form
    786,443.85/1,179,474.03 = 217,810.17/x
  3. Step 3: Cross multiply
    786,443.85x = 1,179,474.03 × 217,810.17
  4. Step 4: Simplify right side
    786,443.85x = 256,901,438,984.89
  5. Step 5: Solve for x
    x = 256,901,438,984.89/786,443.85
  6. Step 6: Final answer
    x = 326,662.15

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1.5x scale

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.