Home / 642,569.80-886,751.46-356,094.64

Finding the Fourth Proportional to 642,569.80, 886,751.46 and 356,094.64

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Solution

The fourth proportional to 642,569.80, 886,751.46 and 356,094.64 is: 491,413.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,569.80 : 886,751.46 = 356,094.64 : x
  2. Step 2: Convert to fraction form
    642,569.80/886,751.46 = 356,094.64/x
  3. Step 3: Cross multiply
    642,569.80x = 886,751.46 × 356,094.64
  4. Step 4: Simplify right side
    642,569.80x = 315,767,441,918.17
  5. Step 5: Solve for x
    x = 315,767,441,918.17/642,569.80
  6. Step 6: Final answer
    x = 491,413.45

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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.