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Finding the Fourth Proportional to 673,272, 929,128.32 and 371,459.52

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Solution

The fourth proportional to 673,272, 929,128.32 and 371,459.52 is: 512,621.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,272 : 929,128.32 = 371,459.52 : x
  2. Step 2: Convert to fraction form
    673,272/929,128.32 = 371,459.52/x
  3. Step 3: Cross multiply
    673,272x = 929,128.32 × 371,459.52
  4. Step 4: Simplify right side
    673,272x = 345,133,559,765.61
  5. Step 5: Solve for x
    x = 345,133,559,765.61/673,272
  6. Step 6: Final answer
    x = 512,621.29

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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.