Home / 538,131.72-742,626.90-296,415.36

Finding the Fourth Proportional to 538,131.72, 742,626.90 and 296,415.36

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Solution

The fourth proportional to 538,131.72, 742,626.90 and 296,415.36 is: 409,056.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,131.72 : 742,626.90 = 296,415.36 : x
  2. Step 2: Convert to fraction form
    538,131.72/742,626.90 = 296,415.36/x
  3. Step 3: Cross multiply
    538,131.72x = 742,626.90 × 296,415.36
  4. Step 4: Simplify right side
    538,131.72x = 220,126,019,909.18
  5. Step 5: Solve for x
    x = 220,126,019,909.18/538,131.72
  6. Step 6: Final answer
    x = 409,056.02

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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.