Home / 917,420.33-1,266,055.71-503,974.55

Finding the Fourth Proportional to 917,420.33, 1,266,055.71 and 503,974.55

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Solution

The fourth proportional to 917,420.33, 1,266,055.71 and 503,974.55 is: 695,493.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,420.33 : 1,266,055.71 = 503,974.55 : x
  2. Step 2: Convert to fraction form
    917,420.33/1,266,055.71 = 503,974.55/x
  3. Step 3: Cross multiply
    917,420.33x = 1,266,055.71 × 503,974.55
  4. Step 4: Simplify right side
    917,420.33x = 638,059,852,604.44
  5. Step 5: Solve for x
    x = 638,059,852,604.44/917,420.33
  6. Step 6: Final answer
    x = 695,493.47

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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.