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Finding the Fourth Proportional to 551,413.70, 827,120.55 and 502,424.90

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Solution

The fourth proportional to 551,413.70, 827,120.55 and 502,424.90 is: 753,637.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,413.70 : 827,120.55 = 502,424.90 : x
  2. Step 2: Convert to fraction form
    551,413.70/827,120.55 = 502,424.90/x
  3. Step 3: Cross multiply
    551,413.70x = 827,120.55 × 502,424.90
  4. Step 4: Simplify right side
    551,413.70x = 415,565,959,621.70
  5. Step 5: Solve for x
    x = 415,565,959,621.70/551,413.70
  6. Step 6: Final answer
    x = 753,637.35

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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.