Home / 1,542,946.78-2,314,789.53-643,888.36

Finding the Fourth Proportional to 1,542,946.78, 2,314,789.53 and 643,888.36

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Solution

The fourth proportional to 1,542,946.78, 2,314,789.53 and 643,888.36 is: 965,986.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,542,946.78 : 2,314,789.53 = 643,888.36 : x
  2. Step 2: Convert to fraction form
    1,542,946.78/2,314,789.53 = 643,888.36/x
  3. Step 3: Cross multiply
    1,542,946.78x = 2,314,789.53 × 643,888.36
  4. Step 4: Simplify right side
    1,542,946.78x = 1,490,466,034,216.87
  5. Step 5: Solve for x
    x = 1,490,466,034,216.87/1,542,946.78
  6. Step 6: Final answer
    x = 965,986.68

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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.