Home / 817,477.75-1,226,413.59-256,512.25

Finding the Fourth Proportional to 817,477.75, 1,226,413.59 and 256,512.25

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Solution

The fourth proportional to 817,477.75, 1,226,413.59 and 256,512.25 is: 384,830.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,477.75 : 1,226,413.59 = 256,512.25 : x
  2. Step 2: Convert to fraction form
    817,477.75/1,226,413.59 = 256,512.25/x
  3. Step 3: Cross multiply
    817,477.75x = 1,226,413.59 × 256,512.25
  4. Step 4: Simplify right side
    817,477.75x = 314,590,109,401.48
  5. Step 5: Solve for x
    x = 314,590,109,401.48/817,477.75
  6. Step 6: Final answer
    x = 384,830.18

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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.