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Finding the Fourth Proportional to 677,308.86, 934,696.98 and 371,413.08

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Solution

The fourth proportional to 677,308.86, 934,696.98 and 371,413.08 is: 512,555.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,308.86 : 934,696.98 = 371,413.08 : x
  2. Step 2: Convert to fraction form
    677,308.86/934,696.98 = 371,413.08/x
  3. Step 3: Cross multiply
    677,308.86x = 934,696.98 × 371,413.08
  4. Step 4: Simplify right side
    677,308.86x = 347,158,684,208.50
  5. Step 5: Solve for x
    x = 347,158,684,208.50/677,308.86
  6. Step 6: Final answer
    x = 512,555.95

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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.