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Finding the Fourth Proportional to 578,273.05, 798,379.05 and 371,625.25

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Solution

The fourth proportional to 578,273.05, 798,379.05 and 371,625.25 is: 513,075.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,273.05 : 798,379.05 = 371,625.25 : x
  2. Step 2: Convert to fraction form
    578,273.05/798,379.05 = 371,625.25/x
  3. Step 3: Cross multiply
    578,273.05x = 798,379.05 × 371,625.25
  4. Step 4: Simplify right side
    578,273.05x = 296,697,814,051.01
  5. Step 5: Solve for x
    x = 296,697,814,051.01/578,273.05
  6. Step 6: Final answer
    x = 513,075.64

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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.