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Finding the Fourth Proportional to 609.87, 841.63 and 370.53

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Solution

The fourth proportional to 609.87, 841.63 and 370.53 is: 511.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    609.87 : 841.63 = 370.53 : x
  2. Step 2: Convert to fraction form
    609.87/841.63 = 370.53/x
  3. Step 3: Cross multiply
    609.87x = 841.63 × 370.53
  4. Step 4: Simplify right side
    609.87x = 311,848.93
  5. Step 5: Solve for x
    x = 311,848.93/609.87
  6. Step 6: Final answer
    x = 511.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.