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Finding the Fourth Proportional to 501.55, 750.50 and 414.07

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Solution

The fourth proportional to 501.55, 750.50 and 414.07 is: 619.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    501.55 : 750.50 = 414.07 : x
  2. Step 2: Convert to fraction form
    501.55/750.50 = 414.07/x
  3. Step 3: Cross multiply
    501.55x = 750.50 × 414.07
  4. Step 4: Simplify right side
    501.55x = 310,756.62
  5. Step 5: Solve for x
    x = 310,756.62/501.55
  6. Step 6: Final answer
    x = 619.60

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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.