Home / 648,637.35-972,629.40-216,201.66

Finding the Fourth Proportional to 648,637.35, 972,629.40 and 216,201.66

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Solution

The fourth proportional to 648,637.35, 972,629.40 and 216,201.66 is: 324,193.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,637.35 : 972,629.40 = 216,201.66 : x
  2. Step 2: Convert to fraction form
    648,637.35/972,629.40 = 216,201.66/x
  3. Step 3: Cross multiply
    648,637.35x = 972,629.40 × 216,201.66
  4. Step 4: Simplify right side
    648,637.35x = 210,284,090,844.80
  5. Step 5: Solve for x
    x = 210,284,090,844.80/648,637.35
  6. Step 6: Final answer
    x = 324,193.62

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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.