Home / 690,898.11-1,036,347.17-269,878.74

Finding the Fourth Proportional to 690,898.11, 1,036,347.17 and 269,878.74

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Solution

The fourth proportional to 690,898.11, 1,036,347.17 and 269,878.74 is: 404,818.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,898.11 : 1,036,347.17 = 269,878.74 : x
  2. Step 2: Convert to fraction form
    690,898.11/1,036,347.17 = 269,878.74/x
  3. Step 3: Cross multiply
    690,898.11x = 1,036,347.17 × 269,878.74
  4. Step 4: Simplify right side
    690,898.11x = 279,688,063,935.13
  5. Step 5: Solve for x
    x = 279,688,063,935.13/690,898.11
  6. Step 6: Final answer
    x = 404,818.11

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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.