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Finding the Fourth Proportional to 658,811.01, 909,121.47 and 364,443.16

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Solution

The fourth proportional to 658,811.01, 909,121.47 and 364,443.16 is: 502,910.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,811.01 : 909,121.47 = 364,443.16 : x
  2. Step 2: Convert to fraction form
    658,811.01/909,121.47 = 364,443.16/x
  3. Step 3: Cross multiply
    658,811.01x = 909,121.47 × 364,443.16
  4. Step 4: Simplify right side
    658,811.01x = 331,323,102,744.23
  5. Step 5: Solve for x
    x = 331,323,102,744.23/658,811.01
  6. Step 6: Final answer
    x = 502,910.70

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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.