Home / 497,076.12-686,026.80-282,285.18

Finding the Fourth Proportional to 497,076.12, 686,026.80 and 282,285.18

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Solution

The fourth proportional to 497,076.12, 686,026.80 and 282,285.18 is: 389,588.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,076.12 : 686,026.80 = 282,285.18 : x
  2. Step 2: Convert to fraction form
    497,076.12/686,026.80 = 282,285.18/x
  3. Step 3: Cross multiply
    497,076.12x = 686,026.80 × 282,285.18
  4. Step 4: Simplify right side
    497,076.12x = 193,655,198,722.82
  5. Step 5: Solve for x
    x = 193,655,198,722.82/497,076.12
  6. Step 6: Final answer
    x = 389,588.62

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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.