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Finding the Fourth Proportional to 905,499, 1,249,593.48 and 503,091

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Solution

The fourth proportional to 905,499, 1,249,593.48 and 503,091 is: 694,268.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,499 : 1,249,593.48 = 503,091 : x
  2. Step 2: Convert to fraction form
    905,499/1,249,593.48 = 503,091/x
  3. Step 3: Cross multiply
    905,499x = 1,249,593.48 × 503,091
  4. Step 4: Simplify right side
    905,499x = 628,659,233,446.68
  5. Step 5: Solve for x
    x = 628,659,233,446.68/905,499
  6. Step 6: Final answer
    x = 694,268.28

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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.