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Finding the Fourth Proportional to 607.49, 910.62 and 347.17

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Solution

The fourth proportional to 607.49, 910.62 and 347.17 is: 520.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.49 : 910.62 = 347.17 : x
  2. Step 2: Convert to fraction form
    607.49/910.62 = 347.17/x
  3. Step 3: Cross multiply
    607.49x = 910.62 × 347.17
  4. Step 4: Simplify right side
    607.49x = 316,139.95
  5. Step 5: Solve for x
    x = 316,139.95/607.49
  6. Step 6: Final answer
    x = 520.40

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Double scale
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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.