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Finding the Fourth Proportional to 1,365.68, 2,048.88 and 500

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Solution

The fourth proportional to 1,365.68, 2,048.88 and 500 is: 750.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,365.68 : 2,048.88 = 500 : x
  2. Step 2: Convert to fraction form
    1,365.68/2,048.88 = 500/x
  3. Step 3: Cross multiply
    1,365.68x = 2,048.88 × 500
  4. Step 4: Simplify right side
    1,365.68x = 1,024,440
  5. Step 5: Solve for x
    x = 1,024,440/1,365.68
  6. Step 6: Final answer
    x = 750.13

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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.