Home / 1,263,088.16-1,743,063.20-690,128.34

Finding the Fourth Proportional to 1,263,088.16, 1,743,063.20 and 690,128.34

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Solution

The fourth proportional to 1,263,088.16, 1,743,063.20 and 690,128.34 is: 952,377.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263,088.16 : 1,743,063.20 = 690,128.34 : x
  2. Step 2: Convert to fraction form
    1,263,088.16/1,743,063.20 = 690,128.34/x
  3. Step 3: Cross multiply
    1,263,088.16x = 1,743,063.20 × 690,128.34
  4. Step 4: Simplify right side
    1,263,088.16x = 1,202,937,305,331.94
  5. Step 5: Solve for x
    x = 1,202,937,305,331.94/1,263,088.16
  6. Step 6: Final answer
    x = 952,377.94

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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.