Home / 676,918.40-1,015,766.40-256,236.80

Finding the Fourth Proportional to 676,918.40, 1,015,766.40 and 256,236.80

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Solution

The fourth proportional to 676,918.40, 1,015,766.40 and 256,236.80 is: 384,502.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,918.40 : 1,015,766.40 = 256,236.80 : x
  2. Step 2: Convert to fraction form
    676,918.40/1,015,766.40 = 256,236.80/x
  3. Step 3: Cross multiply
    676,918.40x = 1,015,766.40 × 256,236.80
  4. Step 4: Simplify right side
    676,918.40x = 260,276,731,883.52
  5. Step 5: Solve for x
    x = 260,276,731,883.52/676,918.40
  6. Step 6: Final answer
    x = 384,502.37

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1.5x scale

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.