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Finding the Fourth Proportional to 587,088, 880,632 and 143,856

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Solution

The fourth proportional to 587,088, 880,632 and 143,856 is: 215,784

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,088 : 880,632 = 143,856 : x
  2. Step 2: Convert to fraction form
    587,088/880,632 = 143,856/x
  3. Step 3: Cross multiply
    587,088x = 880,632 × 143,856
  4. Step 4: Simplify right side
    587,088x = 126,684,196,992
  5. Step 5: Solve for x
    x = 126,684,196,992/587,088
  6. Step 6: Final answer
    x = 215,784

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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.