Home / 816,413.16-1,126,663.56-448,905.72

Finding the Fourth Proportional to 816,413.16, 1,126,663.56 and 448,905.72

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Solution

The fourth proportional to 816,413.16, 1,126,663.56 and 448,905.72 is: 619,497.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,413.16 : 1,126,663.56 = 448,905.72 : x
  2. Step 2: Convert to fraction form
    816,413.16/1,126,663.56 = 448,905.72/x
  3. Step 3: Cross multiply
    816,413.16x = 1,126,663.56 × 448,905.72
  4. Step 4: Simplify right side
    816,413.16x = 505,765,716,599.56
  5. Step 5: Solve for x
    x = 505,765,716,599.56/816,413.16
  6. Step 6: Final answer
    x = 619,497.26

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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.