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Finding the Fourth Proportional to 904.19, 1,248.80 and 608.94

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Solution

The fourth proportional to 904.19, 1,248.80 and 608.94 is: 841.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    904.19 : 1,248.80 = 608.94 : x
  2. Step 2: Convert to fraction form
    904.19/1,248.80 = 608.94/x
  3. Step 3: Cross multiply
    904.19x = 1,248.80 × 608.94
  4. Step 4: Simplify right side
    904.19x = 760,441.23
  5. Step 5: Solve for x
    x = 760,441.23/904.19
  6. Step 6: Final answer
    x = 841.02

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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.