Home / 458,263.56-687,173.10-268,785.80

Finding the Fourth Proportional to 458,263.56, 687,173.10 and 268,785.80

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Solution

The fourth proportional to 458,263.56, 687,173.10 and 268,785.80 is: 403,048.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,263.56 : 687,173.10 = 268,785.80 : x
  2. Step 2: Convert to fraction form
    458,263.56/687,173.10 = 268,785.80/x
  3. Step 3: Cross multiply
    458,263.56x = 687,173.10 × 268,785.80
  4. Step 4: Simplify right side
    458,263.56x = 184,702,371,421.98
  5. Step 5: Solve for x
    x = 184,702,371,421.98/458,263.56
  6. Step 6: Final answer
    x = 403,048.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.