Home / 947,620.42-1,427,824.09-782,832.40

Finding the Fourth Proportional to 947,620.42, 1,427,824.09 and 782,832.40

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Solution

The fourth proportional to 947,620.42, 1,427,824.09 and 782,832.40 is: 1,179,530.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,620.42 : 1,427,824.09 = 782,832.40 : x
  2. Step 2: Convert to fraction form
    947,620.42/1,427,824.09 = 782,832.40/x
  3. Step 3: Cross multiply
    947,620.42x = 1,427,824.09 × 782,832.40
  4. Step 4: Simplify right side
    947,620.42x = 1,117,746,959,152.52
  5. Step 5: Solve for x
    x = 1,117,746,959,152.52/947,620.42
  6. Step 6: Final answer
    x = 1,179,530.26

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.