Home / 493,139.60-739,733.70-256,943.60

Finding the Fourth Proportional to 493,139.60, 739,733.70 and 256,943.60

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Solution

The fourth proportional to 493,139.60, 739,733.70 and 256,943.60 is: 385,428.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,139.60 : 739,733.70 = 256,943.60 : x
  2. Step 2: Convert to fraction form
    493,139.60/739,733.70 = 256,943.60/x
  3. Step 3: Cross multiply
    493,139.60x = 739,733.70 × 256,943.60
  4. Step 4: Simplify right side
    493,139.60x = 190,069,839,919.32
  5. Step 5: Solve for x
    x = 190,069,839,919.32/493,139.60
  6. Step 6: Final answer
    x = 385,428.06

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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.