Home / 664,960.02-998,916.40-412,427.22

Finding the Fourth Proportional to 664,960.02, 998,916.40 and 412,427.22

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Solution

The fourth proportional to 664,960.02, 998,916.40 and 412,427.22 is: 619,556.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,960.02 : 998,916.40 = 412,427.22 : x
  2. Step 2: Convert to fraction form
    664,960.02/998,916.40 = 412,427.22/x
  3. Step 3: Cross multiply
    664,960.02x = 998,916.40 × 412,427.22
  4. Step 4: Simplify right side
    664,960.02x = 411,980,313,864.41
  5. Step 5: Solve for x
    x = 411,980,313,864.41/664,960.02
  6. Step 6: Final answer
    x = 619,556.52

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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.