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Finding the Fourth Proportional to 630.58, 870.36 and 444.12

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Solution

The fourth proportional to 630.58, 870.36 and 444.12 is: 613.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.58 : 870.36 = 444.12 : x
  2. Step 2: Convert to fraction form
    630.58/870.36 = 444.12/x
  3. Step 3: Cross multiply
    630.58x = 870.36 × 444.12
  4. Step 4: Simplify right side
    630.58x = 386,544.28
  5. Step 5: Solve for x
    x = 386,544.28/630.58
  6. Step 6: Final answer
    x = 613.00

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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.