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Finding the Fourth Proportional to 750.69, 1,035 and 610.29

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Solution

The fourth proportional to 750.69, 1,035 and 610.29 is: 841.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    750.69 : 1,035 = 610.29 : x
  2. Step 2: Convert to fraction form
    750.69/1,035 = 610.29/x
  3. Step 3: Cross multiply
    750.69x = 1,035 × 610.29
  4. Step 4: Simplify right side
    750.69x = 631,650.15
  5. Step 5: Solve for x
    x = 631,650.15/750.69
  6. Step 6: Final answer
    x = 841.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.