Home / 917,420.13-1,266,055.44-503,974.33

Finding the Fourth Proportional to 917,420.13, 1,266,055.44 and 503,974.33

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Solution

The fourth proportional to 917,420.13, 1,266,055.44 and 503,974.33 is: 695,493.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,420.13 : 1,266,055.44 = 503,974.33 : x
  2. Step 2: Convert to fraction form
    917,420.13/1,266,055.44 = 503,974.33/x
  3. Step 3: Cross multiply
    917,420.13x = 1,266,055.44 × 503,974.33
  4. Step 4: Simplify right side
    917,420.13x = 638,059,442,040.02
  5. Step 5: Solve for x
    x = 638,059,442,040.02/917,420.13
  6. Step 6: Final answer
    x = 695,493.18

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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.