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Finding the Fourth Proportional to 486,676.47, 671,652.64 and 268,904.13

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Solution

The fourth proportional to 486,676.47, 671,652.64 and 268,904.13 is: 371,109.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,676.47 : 671,652.64 = 268,904.13 : x
  2. Step 2: Convert to fraction form
    486,676.47/671,652.64 = 268,904.13/x
  3. Step 3: Cross multiply
    486,676.47x = 671,652.64 × 268,904.13
  4. Step 4: Simplify right side
    486,676.47x = 180,610,168,821.40
  5. Step 5: Solve for x
    x = 180,610,168,821.40/486,676.47
  6. Step 6: Final answer
    x = 371,109.31

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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.