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Finding the Fourth Proportional to 586,603.52, 809,512.84 and 318,331.52

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Solution

The fourth proportional to 586,603.52, 809,512.84 and 318,331.52 is: 439,297.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,603.52 : 809,512.84 = 318,331.52 : x
  2. Step 2: Convert to fraction form
    586,603.52/809,512.84 = 318,331.52/x
  3. Step 3: Cross multiply
    586,603.52x = 809,512.84 × 318,331.52
  4. Step 4: Simplify right side
    586,603.52x = 257,693,452,816.72
  5. Step 5: Solve for x
    x = 257,693,452,816.72/586,603.52
  6. Step 6: Final answer
    x = 439,297.49

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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.