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Finding the Fourth Proportional to 658,484.74, 987,719.91 and 159,848.74

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Solution

The fourth proportional to 658,484.74, 987,719.91 and 159,848.74 is: 239,771.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,484.74 : 987,719.91 = 159,848.74 : x
  2. Step 2: Convert to fraction form
    658,484.74/987,719.91 = 159,848.74/x
  3. Step 3: Cross multiply
    658,484.74x = 987,719.91 × 159,848.74
  4. Step 4: Simplify right side
    658,484.74x = 157,885,783,086.41
  5. Step 5: Solve for x
    x = 157,885,783,086.41/658,484.74
  6. Step 6: Final answer
    x = 239,771.36

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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.