Home / 656,849.64-906,452.31-355,043.64

Finding the Fourth Proportional to 656,849.64, 906,452.31 and 355,043.64

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Solution

The fourth proportional to 656,849.64, 906,452.31 and 355,043.64 is: 489,960.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,849.64 : 906,452.31 = 355,043.64 : x
  2. Step 2: Convert to fraction form
    656,849.64/906,452.31 = 355,043.64/x
  3. Step 3: Cross multiply
    656,849.64x = 906,452.31 × 355,043.64
  4. Step 4: Simplify right side
    656,849.64x = 321,830,127,628.81
  5. Step 5: Solve for x
    x = 321,830,127,628.81/656,849.64
  6. Step 6: Final answer
    x = 489,960.12

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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.