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Finding the Fourth Proportional to 882.99, 1,323.45 and 492.90

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Solution

The fourth proportional to 882.99, 1,323.45 and 492.90 is: 738.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    882.99 : 1,323.45 = 492.90 : x
  2. Step 2: Convert to fraction form
    882.99/1,323.45 = 492.90/x
  3. Step 3: Cross multiply
    882.99x = 1,323.45 × 492.90
  4. Step 4: Simplify right side
    882.99x = 652,328.51
  5. Step 5: Solve for x
    x = 652,328.51/882.99
  6. Step 6: Final answer
    x = 738.77

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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.