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Finding the Fourth Proportional to 903.84, 1,353.60 and 492.36

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Solution

The fourth proportional to 903.84, 1,353.60 and 492.36 is: 737.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    903.84 : 1,353.60 = 492.36 : x
  2. Step 2: Convert to fraction form
    903.84/1,353.60 = 492.36/x
  3. Step 3: Cross multiply
    903.84x = 1,353.60 × 492.36
  4. Step 4: Simplify right side
    903.84x = 666,458.50
  5. Step 5: Solve for x
    x = 666,458.50/903.84
  6. Step 6: Final answer
    x = 737.36

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1.5x scale

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.