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Finding the Fourth Proportional to 636,055.13, 954,223.34 and 209,573.73

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Solution

The fourth proportional to 636,055.13, 954,223.34 and 209,573.73 is: 314,406.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,055.13 : 954,223.34 = 209,573.73 : x
  2. Step 2: Convert to fraction form
    636,055.13/954,223.34 = 209,573.73/x
  3. Step 3: Cross multiply
    636,055.13x = 954,223.34 × 209,573.73
  4. Step 4: Simplify right side
    636,055.13x = 199,980,143,568.99
  5. Step 5: Solve for x
    x = 199,980,143,568.99/636,055.13
  6. Step 6: Final answer
    x = 314,406.93

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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.