Home / 638,496.72-881,131.59-352,027.08

Finding the Fourth Proportional to 638,496.72, 881,131.59 and 352,027.08

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Solution

The fourth proportional to 638,496.72, 881,131.59 and 352,027.08 is: 485,800.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,496.72 : 881,131.59 = 352,027.08 : x
  2. Step 2: Convert to fraction form
    638,496.72/881,131.59 = 352,027.08/x
  3. Step 3: Cross multiply
    638,496.72x = 881,131.59 × 352,027.08
  4. Step 4: Simplify right side
    638,496.72x = 310,182,180,723.46
  5. Step 5: Solve for x
    x = 310,182,180,723.46/638,496.72
  6. Step 6: Final answer
    x = 485,800.74

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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.