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Finding the Fourth Proportional to 661,241.48, 912,503.12 and 370,852.98

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Solution

The fourth proportional to 661,241.48, 912,503.12 and 370,852.98 is: 511,771.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,241.48 : 912,503.12 = 370,852.98 : x
  2. Step 2: Convert to fraction form
    661,241.48/912,503.12 = 370,852.98/x
  3. Step 3: Cross multiply
    661,241.48x = 912,503.12 × 370,852.98
  4. Step 4: Simplify right side
    661,241.48x = 338,404,503,254.02
  5. Step 5: Solve for x
    x = 338,404,503,254.02/661,241.48
  6. Step 6: Final answer
    x = 511,771.44

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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.