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Finding the Fourth Proportional to 750.04, 1,127.12 and 403.63

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Solution

The fourth proportional to 750.04, 1,127.12 and 403.63 is: 606.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    750.04 : 1,127.12 = 403.63 : x
  2. Step 2: Convert to fraction form
    750.04/1,127.12 = 403.63/x
  3. Step 3: Cross multiply
    750.04x = 1,127.12 × 403.63
  4. Step 4: Simplify right side
    750.04x = 454,934.61
  5. Step 5: Solve for x
    x = 454,934.61/750.04
  6. Step 6: Final answer
    x = 606.55

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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.