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Finding the Fourth Proportional to 591,051.80, 885,329.70 and 391,467.80

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Solution

The fourth proportional to 591,051.80, 885,329.70 and 391,467.80 is: 586,375.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,051.80 : 885,329.70 = 391,467.80 : x
  2. Step 2: Convert to fraction form
    591,051.80/885,329.70 = 391,467.80/x
  3. Step 3: Cross multiply
    591,051.80x = 885,329.70 × 391,467.80
  4. Step 4: Simplify right side
    591,051.80x = 346,578,069,933.66
  5. Step 5: Solve for x
    x = 346,578,069,933.66/591,051.80
  6. Step 6: Final answer
    x = 586,375.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.