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Finding the Fourth Proportional to 905,507, 1,249,604.52 and 503,099

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Solution

The fourth proportional to 905,507, 1,249,604.52 and 503,099 is: 694,279.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,507 : 1,249,604.52 = 503,099 : x
  2. Step 2: Convert to fraction form
    905,507/1,249,604.52 = 503,099/x
  3. Step 3: Cross multiply
    905,507x = 1,249,604.52 × 503,099
  4. Step 4: Simplify right side
    905,507x = 628,674,784,407.48
  5. Step 5: Solve for x
    x = 628,674,784,407.48/905,507
  6. Step 6: Final answer
    x = 694,279.32

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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.