Home / 687,567.43-948,828.34-381,625.97

Finding the Fourth Proportional to 687,567.43, 948,828.34 and 381,625.97

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Solution

The fourth proportional to 687,567.43, 948,828.34 and 381,625.97 is: 526,635.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,567.43 : 948,828.34 = 381,625.97 : x
  2. Step 2: Convert to fraction form
    687,567.43/948,828.34 = 381,625.97/x
  3. Step 3: Cross multiply
    687,567.43x = 948,828.34 × 381,625.97
  4. Step 4: Simplify right side
    687,567.43x = 362,097,535,615.99
  5. Step 5: Solve for x
    x = 362,097,535,615.99/687,567.43
  6. Step 6: Final answer
    x = 526,635.67

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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.