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Finding the Fourth Proportional to 656,635.72, 906,167.86 and 370,169.80

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Solution

The fourth proportional to 656,635.72, 906,167.86 and 370,169.80 is: 510,840.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,635.72 : 906,167.86 = 370,169.80 : x
  2. Step 2: Convert to fraction form
    656,635.72/906,167.86 = 370,169.80/x
  3. Step 3: Cross multiply
    656,635.72x = 906,167.86 × 370,169.80
  4. Step 4: Simplify right side
    656,635.72x = 335,435,975,502.63
  5. Step 5: Solve for x
    x = 335,435,975,502.63/656,635.72
  6. Step 6: Final answer
    x = 510,840.28

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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.