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Finding the Fourth Proportional to 750.74, 1,037.03 and 603.93

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Solution

The fourth proportional to 750.74, 1,037.03 and 603.93 is: 834.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    750.74 : 1,037.03 = 603.93 : x
  2. Step 2: Convert to fraction form
    750.74/1,037.03 = 603.93/x
  3. Step 3: Cross multiply
    750.74x = 1,037.03 × 603.93
  4. Step 4: Simplify right side
    750.74x = 626,290.51
  5. Step 5: Solve for x
    x = 626,290.51/750.74
  6. Step 6: Final answer
    x = 834.23

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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.