Home / 497,813.80-686,942.22-282,904.60

Finding the Fourth Proportional to 497,813.80, 686,942.22 and 282,904.60

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Solution

The fourth proportional to 497,813.80, 686,942.22 and 282,904.60 is: 390,385.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,813.80 : 686,942.22 = 282,904.60 : x
  2. Step 2: Convert to fraction form
    497,813.80/686,942.22 = 282,904.60/x
  3. Step 3: Cross multiply
    497,813.80x = 686,942.22 × 282,904.60
  4. Step 4: Simplify right side
    497,813.80x = 194,339,113,972.21
  5. Step 5: Solve for x
    x = 194,339,113,972.21/497,813.80
  6. Step 6: Final answer
    x = 390,385.15

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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.