Home / 931,918.68-1,397,646.90-399,379.32

Finding the Fourth Proportional to 931,918.68, 1,397,646.90 and 399,379.32

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Solution

The fourth proportional to 931,918.68, 1,397,646.90 and 399,379.32 is: 598,969.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,918.68 : 1,397,646.90 = 399,379.32 : x
  2. Step 2: Convert to fraction form
    931,918.68/1,397,646.90 = 399,379.32/x
  3. Step 3: Cross multiply
    931,918.68x = 1,397,646.90 × 399,379.32
  4. Step 4: Simplify right side
    931,918.68x = 558,191,268,522.11
  5. Step 5: Solve for x
    x = 558,191,268,522.11/931,918.68
  6. Step 6: Final answer
    x = 598,969.93

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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.