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Finding the Fourth Proportional to 887.32, 1,225.06 and 608.02

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Solution

The fourth proportional to 887.32, 1,225.06 and 608.02 is: 839.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    887.32 : 1,225.06 = 608.02 : x
  2. Step 2: Convert to fraction form
    887.32/1,225.06 = 608.02/x
  3. Step 3: Cross multiply
    887.32x = 1,225.06 × 608.02
  4. Step 4: Simplify right side
    887.32x = 744,860.98
  5. Step 5: Solve for x
    x = 744,860.98/887.32
  6. Step 6: Final answer
    x = 839.45

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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.