Home / 931,941.72-1,396,574.46-399,318.12

Finding the Fourth Proportional to 931,941.72, 1,396,574.46 and 399,318.12

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Solution

The fourth proportional to 931,941.72, 1,396,574.46 and 399,318.12 is: 598,403.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,941.72 : 1,396,574.46 = 399,318.12 : x
  2. Step 2: Convert to fraction form
    931,941.72/1,396,574.46 = 399,318.12/x
  3. Step 3: Cross multiply
    931,941.72x = 1,396,574.46 × 399,318.12
  4. Step 4: Simplify right side
    931,941.72x = 557,677,487,807.22
  5. Step 5: Solve for x
    x = 557,677,487,807.22/931,941.72
  6. Step 6: Final answer
    x = 598,403.82

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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.