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Finding the Fourth Proportional to 438,066.02, 658,148.79 and 280,602.02

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Solution

The fourth proportional to 438,066.02, 658,148.79 and 280,602.02 is: 421,575.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,066.02 : 658,148.79 = 280,602.02 : x
  2. Step 2: Convert to fraction form
    438,066.02/658,148.79 = 280,602.02/x
  3. Step 3: Cross multiply
    438,066.02x = 658,148.79 × 280,602.02
  4. Step 4: Simplify right side
    438,066.02x = 184,677,882,632.19
  5. Step 5: Solve for x
    x = 184,677,882,632.19/438,066.02
  6. Step 6: Final answer
    x = 421,575.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.