Home / 826,490.80-1,140,413.20-463,929.94

Finding the Fourth Proportional to 826,490.80, 1,140,413.20 and 463,929.94

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Solution

The fourth proportional to 826,490.80, 1,140,413.20 and 463,929.94 is: 640,142.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,490.80 : 1,140,413.20 = 463,929.94 : x
  2. Step 2: Convert to fraction form
    826,490.80/1,140,413.20 = 463,929.94/x
  3. Step 3: Cross multiply
    826,490.80x = 1,140,413.20 × 463,929.94
  4. Step 4: Simplify right side
    826,490.80x = 529,071,827,451.21
  5. Step 5: Solve for x
    x = 529,071,827,451.21/826,490.80
  6. Step 6: Final answer
    x = 640,142.43

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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.