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Finding the Fourth Proportional to 710,304.29, 980,241.45 and 388,035.12

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Solution

The fourth proportional to 710,304.29, 980,241.45 and 388,035.12 is: 535,500.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,304.29 : 980,241.45 = 388,035.12 : x
  2. Step 2: Convert to fraction form
    710,304.29/980,241.45 = 388,035.12/x
  3. Step 3: Cross multiply
    710,304.29x = 980,241.45 × 388,035.12
  4. Step 4: Simplify right side
    710,304.29x = 380,368,110,900.50
  5. Step 5: Solve for x
    x = 380,368,110,900.50/710,304.29
  6. Step 6: Final answer
    x = 535,500.23

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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.