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Finding the Fourth Proportional to 659,088.54, 988,632.81 and 209,807.46

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Solution

The fourth proportional to 659,088.54, 988,632.81 and 209,807.46 is: 314,711.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,088.54 : 988,632.81 = 209,807.46 : x
  2. Step 2: Convert to fraction form
    659,088.54/988,632.81 = 209,807.46/x
  3. Step 3: Cross multiply
    659,088.54x = 988,632.81 × 209,807.46
  4. Step 4: Simplify right side
    659,088.54x = 207,422,538,738.76
  5. Step 5: Solve for x
    x = 207,422,538,738.76/659,088.54
  6. Step 6: Final answer
    x = 314,711.19

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Similar ratio
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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.