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Finding the Fourth Proportional to 651,889.16, 978,112.62 and 272,898.44

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Solution

The fourth proportional to 651,889.16, 978,112.62 and 272,898.44 is: 409,464.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,889.16 : 978,112.62 = 272,898.44 : x
  2. Step 2: Convert to fraction form
    651,889.16/978,112.62 = 272,898.44/x
  3. Step 3: Cross multiply
    651,889.16x = 978,112.62 × 272,898.44
  4. Step 4: Simplify right side
    651,889.16x = 266,925,408,142.31
  5. Step 5: Solve for x
    x = 266,925,408,142.31/651,889.16
  6. Step 6: Final answer
    x = 409,464.41

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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.