Home / 698,519.78-1,046,903.15-298,690.38

Finding the Fourth Proportional to 698,519.78, 1,046,903.15 and 298,690.38

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Solution

The fourth proportional to 698,519.78, 1,046,903.15 and 298,690.38 is: 447,660.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,519.78 : 1,046,903.15 = 298,690.38 : x
  2. Step 2: Convert to fraction form
    698,519.78/1,046,903.15 = 298,690.38/x
  3. Step 3: Cross multiply
    698,519.78x = 1,046,903.15 × 298,690.38
  4. Step 4: Simplify right side
    698,519.78x = 312,699,898,203.25
  5. Step 5: Solve for x
    x = 312,699,898,203.25/698,519.78
  6. Step 6: Final answer
    x = 447,660.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.