Home / 628,449.88-867,246.66-341,970.76

Finding the Fourth Proportional to 628,449.88, 867,246.66 and 341,970.76

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Solution

The fourth proportional to 628,449.88, 867,246.66 and 341,970.76 is: 471,911.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,449.88 : 867,246.66 = 341,970.76 : x
  2. Step 2: Convert to fraction form
    628,449.88/867,246.66 = 341,970.76/x
  3. Step 3: Cross multiply
    628,449.88x = 867,246.66 × 341,970.76
  4. Step 4: Simplify right side
    628,449.88x = 296,572,999,427.66
  5. Step 5: Solve for x
    x = 296,572,999,427.66/628,449.88
  6. Step 6: Final answer
    x = 471,911.94

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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.