Home / 931,917.68-1,397,645.40-399,378.32

Finding the Fourth Proportional to 931,917.68, 1,397,645.40 and 399,378.32

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Solution

The fourth proportional to 931,917.68, 1,397,645.40 and 399,378.32 is: 598,968.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,917.68 : 1,397,645.40 = 399,378.32 : x
  2. Step 2: Convert to fraction form
    931,917.68/1,397,645.40 = 399,378.32/x
  3. Step 3: Cross multiply
    931,917.68x = 1,397,645.40 × 399,378.32
  4. Step 4: Simplify right side
    931,917.68x = 558,189,271,807.73
  5. Step 5: Solve for x
    x = 558,189,271,807.73/931,917.68
  6. Step 6: Final answer
    x = 598,968.43

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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.