Home / 917,922.66-1,266,729.21-510,090.90

Finding the Fourth Proportional to 917,922.66, 1,266,729.21 and 510,090.90

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Solution

The fourth proportional to 917,922.66, 1,266,729.21 and 510,090.90 is: 703,923.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,922.66 : 1,266,729.21 = 510,090.90 : x
  2. Step 2: Convert to fraction form
    917,922.66/1,266,729.21 = 510,090.90/x
  3. Step 3: Cross multiply
    917,922.66x = 1,266,729.21 × 510,090.90
  4. Step 4: Simplify right side
    917,922.66x = 646,147,042,785.19
  5. Step 5: Solve for x
    x = 646,147,042,785.19/917,922.66
  6. Step 6: Final answer
    x = 703,923.19

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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.