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Finding the Fourth Proportional to 651,975.60, 978,198.30 and 292,116.90

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Solution

The fourth proportional to 651,975.60, 978,198.30 and 292,116.90 is: 438,280.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,975.60 : 978,198.30 = 292,116.90 : x
  2. Step 2: Convert to fraction form
    651,975.60/978,198.30 = 292,116.90/x
  3. Step 3: Cross multiply
    651,975.60x = 978,198.30 × 292,116.90
  4. Step 4: Simplify right side
    651,975.60x = 285,748,254,981.27
  5. Step 5: Solve for x
    x = 285,748,254,981.27/651,975.60
  6. Step 6: Final answer
    x = 438,280.60

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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.