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Finding the Fourth Proportional to 608,464.40, 912,696.60 and 187,739.60

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Solution

The fourth proportional to 608,464.40, 912,696.60 and 187,739.60 is: 281,609.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,464.40 : 912,696.60 = 187,739.60 : x
  2. Step 2: Convert to fraction form
    608,464.40/912,696.60 = 187,739.60/x
  3. Step 3: Cross multiply
    608,464.40x = 912,696.60 × 187,739.60
  4. Step 4: Simplify right side
    608,464.40x = 171,349,294,605.36
  5. Step 5: Solve for x
    x = 171,349,294,605.36/608,464.40
  6. Step 6: Final answer
    x = 281,609.40

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Similar ratio
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1.5x scale

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.