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Finding the Fourth Proportional to 886,792, 1,223,803.20 and 484,409.92

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Solution

The fourth proportional to 886,792, 1,223,803.20 and 484,409.92 is: 668,502.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,792 : 1,223,803.20 = 484,409.92 : x
  2. Step 2: Convert to fraction form
    886,792/1,223,803.20 = 484,409.92/x
  3. Step 3: Cross multiply
    886,792x = 1,223,803.20 × 484,409.92
  4. Step 4: Simplify right side
    886,792x = 592,822,410,207.74
  5. Step 5: Solve for x
    x = 592,822,410,207.74/886,792
  6. Step 6: Final answer
    x = 668,502.21

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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.