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Finding the Fourth Proportional to 608,431.40, 912,342.42 and 187,652.60

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Solution

The fourth proportional to 608,431.40, 912,342.42 and 187,652.60 is: 281,384.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,431.40 : 912,342.42 = 187,652.60 : x
  2. Step 2: Convert to fraction form
    608,431.40/912,342.42 = 187,652.60/x
  3. Step 3: Cross multiply
    608,431.40x = 912,342.42 × 187,652.60
  4. Step 4: Simplify right side
    608,431.40x = 171,203,427,203.29
  5. Step 5: Solve for x
    x = 171,203,427,203.29/608,431.40
  6. Step 6: Final answer
    x = 281,384.93

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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.