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Finding the Fourth Proportional to 658,079.37, 908,066.09 and 386,048.01

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Solution

The fourth proportional to 658,079.37, 908,066.09 and 386,048.01 is: 532,697.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,079.37 : 908,066.09 = 386,048.01 : x
  2. Step 2: Convert to fraction form
    658,079.37/908,066.09 = 386,048.01/x
  3. Step 3: Cross multiply
    658,079.37x = 908,066.09 × 386,048.01
  4. Step 4: Simplify right side
    658,079.37x = 350,557,106,978.89
  5. Step 5: Solve for x
    x = 350,557,106,978.89/658,079.37
  6. Step 6: Final answer
    x = 532,697.30

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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.