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Finding the Fourth Proportional to 578,271.61, 798,504.69 and 363,480.85

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Solution

The fourth proportional to 578,271.61, 798,504.69 and 363,480.85 is: 501,911.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,271.61 : 798,504.69 = 363,480.85 : x
  2. Step 2: Convert to fraction form
    578,271.61/798,504.69 = 363,480.85/x
  3. Step 3: Cross multiply
    578,271.61x = 798,504.69 × 363,480.85
  4. Step 4: Simplify right side
    578,271.61x = 290,241,163,450.19
  5. Step 5: Solve for x
    x = 290,241,163,450.19/578,271.61
  6. Step 6: Final answer
    x = 501,911.49

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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.