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Finding the Fourth Proportional to 620.69, 928.73 and 373.01

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Solution

The fourth proportional to 620.69, 928.73 and 373.01 is: 558.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    620.69 : 928.73 = 373.01 : x
  2. Step 2: Convert to fraction form
    620.69/928.73 = 373.01/x
  3. Step 3: Cross multiply
    620.69x = 928.73 × 373.01
  4. Step 4: Simplify right side
    620.69x = 346,421.87
  5. Step 5: Solve for x
    x = 346,421.87/620.69
  6. Step 6: Final answer
    x = 558.13

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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.