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Finding the Fourth Proportional to 970.56, 1,340.06 and 597.65

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Solution

The fourth proportional to 970.56, 1,340.06 and 597.65 is: 825.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    970.56 : 1,340.06 = 597.65 : x
  2. Step 2: Convert to fraction form
    970.56/1,340.06 = 597.65/x
  3. Step 3: Cross multiply
    970.56x = 1,340.06 × 597.65
  4. Step 4: Simplify right side
    970.56x = 800,883.87
  5. Step 5: Solve for x
    x = 800,883.87/970.56
  6. Step 6: Final answer
    x = 825.18

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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.