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Finding the Fourth Proportional to 899.20, 1,346.70 and 624.52

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Solution

The fourth proportional to 899.20, 1,346.70 and 624.52 is: 935.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    899.20 : 1,346.70 = 624.52 : x
  2. Step 2: Convert to fraction form
    899.20/1,346.70 = 624.52/x
  3. Step 3: Cross multiply
    899.20x = 1,346.70 × 624.52
  4. Step 4: Simplify right side
    899.20x = 841,041.08
  5. Step 5: Solve for x
    x = 841,041.08/899.20
  6. Step 6: Final answer
    x = 935.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.