Home / 1,047,493.82-1,445,500.78-640,277.48

Finding the Fourth Proportional to 1,047,493.82, 1,445,500.78 and 640,277.48

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Solution

The fourth proportional to 1,047,493.82, 1,445,500.78 and 640,277.48 is: 883,558.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047,493.82 : 1,445,500.78 = 640,277.48 : x
  2. Step 2: Convert to fraction form
    1,047,493.82/1,445,500.78 = 640,277.48/x
  3. Step 3: Cross multiply
    1,047,493.82x = 1,445,500.78 × 640,277.48
  4. Step 4: Simplify right side
    1,047,493.82x = 925,521,596,756.44
  5. Step 5: Solve for x
    x = 925,521,596,756.44/1,047,493.82
  6. Step 6: Final answer
    x = 883,558.05

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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.