Home / 865,807.20-1,298,710.80-546,942.60

Finding the Fourth Proportional to 865,807.20, 1,298,710.80 and 546,942.60

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Solution

The fourth proportional to 865,807.20, 1,298,710.80 and 546,942.60 is: 820,413.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,807.20 : 1,298,710.80 = 546,942.60 : x
  2. Step 2: Convert to fraction form
    865,807.20/1,298,710.80 = 546,942.60/x
  3. Step 3: Cross multiply
    865,807.20x = 1,298,710.80 × 546,942.60
  4. Step 4: Simplify right side
    865,807.20x = 710,320,261,600.08
  5. Step 5: Solve for x
    x = 710,320,261,600.08/865,807.20
  6. Step 6: Final answer
    x = 820,413.90

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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.