Home / 656,916.70-906,546.38-355,110.70

Finding the Fourth Proportional to 656,916.70, 906,546.38 and 355,110.70

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Solution

The fourth proportional to 656,916.70, 906,546.38 and 355,110.70 is: 490,053.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,916.70 : 906,546.38 = 355,110.70 : x
  2. Step 2: Convert to fraction form
    656,916.70/906,546.38 = 355,110.70/x
  3. Step 3: Cross multiply
    656,916.70x = 906,546.38 × 355,110.70
  4. Step 4: Simplify right side
    656,916.70x = 321,924,319,584.27
  5. Step 5: Solve for x
    x = 321,924,319,584.27/656,916.70
  6. Step 6: Final answer
    x = 490,053.49

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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.