Home / 868,632.75-1,198,762.43-486,782.55

Finding the Fourth Proportional to 868,632.75, 1,198,762.43 and 486,782.55

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Solution

The fourth proportional to 868,632.75, 1,198,762.43 and 486,782.55 is: 671,787.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,632.75 : 1,198,762.43 = 486,782.55 : x
  2. Step 2: Convert to fraction form
    868,632.75/1,198,762.43 = 486,782.55/x
  3. Step 3: Cross multiply
    868,632.75x = 1,198,762.43 × 486,782.55
  4. Step 4: Simplify right side
    868,632.75x = 583,536,630,085.68
  5. Step 5: Solve for x
    x = 583,536,630,085.68/868,632.75
  6. Step 6: Final answer
    x = 671,787.51

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Double scale
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1.5x scale

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.