Home / 911,319.77-1,257,631.83-503,413.20

Finding the Fourth Proportional to 911,319.77, 1,257,631.83 and 503,413.20

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Solution

The fourth proportional to 911,319.77, 1,257,631.83 and 503,413.20 is: 694,716.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,319.77 : 1,257,631.83 = 503,413.20 : x
  2. Step 2: Convert to fraction form
    911,319.77/1,257,631.83 = 503,413.20/x
  3. Step 3: Cross multiply
    911,319.77x = 1,257,631.83 × 503,413.20
  4. Step 4: Simplify right side
    911,319.77x = 633,108,463,962.16
  5. Step 5: Solve for x
    x = 633,108,463,962.16/911,319.77
  6. Step 6: Final answer
    x = 694,716.05

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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.