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Finding the Fourth Proportional to 486,322.29, 671,006.57 and 285,079.41

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Solution

The fourth proportional to 486,322.29, 671,006.57 and 285,079.41 is: 393,340.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,322.29 : 671,006.57 = 285,079.41 : x
  2. Step 2: Convert to fraction form
    486,322.29/671,006.57 = 285,079.41/x
  3. Step 3: Cross multiply
    486,322.29x = 671,006.57 × 285,079.41
  4. Step 4: Simplify right side
    486,322.29x = 191,290,155,656.33
  5. Step 5: Solve for x
    x = 191,290,155,656.33/486,322.29
  6. Step 6: Final answer
    x = 393,340.30

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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.