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Finding the Fourth Proportional to 578,573.65, 798,413.98 and 320,440.35

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Solution

The fourth proportional to 578,573.65, 798,413.98 and 320,440.35 is: 442,197.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,573.65 : 798,413.98 = 320,440.35 : x
  2. Step 2: Convert to fraction form
    578,573.65/798,413.98 = 320,440.35/x
  3. Step 3: Cross multiply
    578,573.65x = 798,413.98 × 320,440.35
  4. Step 4: Simplify right side
    578,573.65x = 255,844,053,593.89
  5. Step 5: Solve for x
    x = 255,844,053,593.89/578,573.65
  6. Step 6: Final answer
    x = 442,197.90

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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.