Home / 790,413.76-1,185,809.25-257,935.78

Finding the Fourth Proportional to 790,413.76, 1,185,809.25 and 257,935.78

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Solution

The fourth proportional to 790,413.76, 1,185,809.25 and 257,935.78 is: 386,965.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,413.76 : 1,185,809.25 = 257,935.78 : x
  2. Step 2: Convert to fraction form
    790,413.76/1,185,809.25 = 257,935.78/x
  3. Step 3: Cross multiply
    790,413.76x = 1,185,809.25 × 257,935.78
  4. Step 4: Simplify right side
    790,413.76x = 305,862,627,900.92
  5. Step 5: Solve for x
    x = 305,862,627,900.92/790,413.76
  6. Step 6: Final answer
    x = 386,965.21

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1.5x scale

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.