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Finding the Fourth Proportional to 710,586.35, 980,611.73 and 388,296.46

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Solution

The fourth proportional to 710,586.35, 980,611.73 and 388,296.46 is: 535,850.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,586.35 : 980,611.73 = 388,296.46 : x
  2. Step 2: Convert to fraction form
    710,586.35/980,611.73 = 388,296.46/x
  3. Step 3: Cross multiply
    710,586.35x = 980,611.73 × 388,296.46
  4. Step 4: Simplify right side
    710,586.35x = 380,768,063,393.48
  5. Step 5: Solve for x
    x = 380,768,063,393.48/710,586.35
  6. Step 6: Final answer
    x = 535,850.52

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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.