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Finding the Fourth Proportional to 691.04, 954.52 and 608.42

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Solution

The fourth proportional to 691.04, 954.52 and 608.42 is: 840.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    691.04 : 954.52 = 608.42 : x
  2. Step 2: Convert to fraction form
    691.04/954.52 = 608.42/x
  3. Step 3: Cross multiply
    691.04x = 954.52 × 608.42
  4. Step 4: Simplify right side
    691.04x = 580,749.06
  5. Step 5: Solve for x
    x = 580,749.06/691.04
  6. Step 6: Final answer
    x = 840.40

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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.