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Finding the Fourth Proportional to 717,709.70, 1,076,775.08 and 212,284

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Solution

The fourth proportional to 717,709.70, 1,076,775.08 and 212,284 is: 318,488.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,709.70 : 1,076,775.08 = 212,284 : x
  2. Step 2: Convert to fraction form
    717,709.70/1,076,775.08 = 212,284/x
  3. Step 3: Cross multiply
    717,709.70x = 1,076,775.08 × 212,284
  4. Step 4: Simplify right side
    717,709.70x = 228,582,121,082.72
  5. Step 5: Solve for x
    x = 228,582,121,082.72/717,709.70
  6. Step 6: Final answer
    x = 318,488.27

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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.