Home / 497,476.72-686,520.20-282,628.58

Finding the Fourth Proportional to 497,476.72, 686,520.20 and 282,628.58

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Solution

The fourth proportional to 497,476.72, 686,520.20 and 282,628.58 is: 390,028.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,476.72 : 686,520.20 = 282,628.58 : x
  2. Step 2: Convert to fraction form
    497,476.72/686,520.20 = 282,628.58/x
  3. Step 3: Cross multiply
    497,476.72x = 686,520.20 × 282,628.58
  4. Step 4: Simplify right side
    497,476.72x = 194,030,229,267.32
  5. Step 5: Solve for x
    x = 194,030,229,267.32/497,476.72
  6. Step 6: Final answer
    x = 390,028.76

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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.