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Finding the Fourth Proportional to 440,920.94, 608,600.39 and 287,982.51

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Solution

The fourth proportional to 440,920.94, 608,600.39 and 287,982.51 is: 397,500.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,920.94 : 608,600.39 = 287,982.51 : x
  2. Step 2: Convert to fraction form
    440,920.94/608,600.39 = 287,982.51/x
  3. Step 3: Cross multiply
    440,920.94x = 608,600.39 × 287,982.51
  4. Step 4: Simplify right side
    440,920.94x = 175,266,264,177.02
  5. Step 5: Solve for x
    x = 175,266,264,177.02/440,920.94
  6. Step 6: Final answer
    x = 397,500.44

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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.