Home / 871,764.72-1,203,072.48-489,792.24

Finding the Fourth Proportional to 871,764.72, 1,203,072.48 and 489,792.24

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Solution

The fourth proportional to 871,764.72, 1,203,072.48 and 489,792.24 is: 675,934.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,764.72 : 1,203,072.48 = 489,792.24 : x
  2. Step 2: Convert to fraction form
    871,764.72/1,203,072.48 = 489,792.24/x
  3. Step 3: Cross multiply
    871,764.72x = 1,203,072.48 × 489,792.24
  4. Step 4: Simplify right side
    871,764.72x = 589,255,564,861.56
  5. Step 5: Solve for x
    x = 589,255,564,861.56/871,764.72
  6. Step 6: Final answer
    x = 675,934.17

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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.