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Finding the Fourth Proportional to 710,585.35, 980,610.35 and 388,295.46

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Solution

The fourth proportional to 710,585.35, 980,610.35 and 388,295.46 is: 535,849.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,585.35 : 980,610.35 = 388,295.46 : x
  2. Step 2: Convert to fraction form
    710,585.35/980,610.35 = 388,295.46/x
  3. Step 3: Cross multiply
    710,585.35x = 980,610.35 × 388,295.46
  4. Step 4: Simplify right side
    710,585.35x = 380,766,544,992.53
  5. Step 5: Solve for x
    x = 380,766,544,992.53/710,585.35
  6. Step 6: Final answer
    x = 535,849.14

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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.