Home / 664,971.13-917,660.16-363,165.13

Finding the Fourth Proportional to 664,971.13, 917,660.16 and 363,165.13

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Solution

The fourth proportional to 664,971.13, 917,660.16 and 363,165.13 is: 501,167.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,971.13 : 917,660.16 = 363,165.13 : x
  2. Step 2: Convert to fraction form
    664,971.13/917,660.16 = 363,165.13/x
  3. Step 3: Cross multiply
    664,971.13x = 917,660.16 × 363,165.13
  4. Step 4: Simplify right side
    664,971.13x = 333,262,171,302.22
  5. Step 5: Solve for x
    x = 333,262,171,302.22/664,971.13
  6. Step 6: Final answer
    x = 501,167.88

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1.5x scale

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.