Home / 690,898.55-1,036,347.75-269,879.18

Finding the Fourth Proportional to 690,898.55, 1,036,347.75 and 269,879.18

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Solution

The fourth proportional to 690,898.55, 1,036,347.75 and 269,879.18 is: 404,818.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,898.55 : 1,036,347.75 = 269,879.18 : x
  2. Step 2: Convert to fraction form
    690,898.55/1,036,347.75 = 269,879.18/x
  3. Step 3: Cross multiply
    690,898.55x = 1,036,347.75 × 269,879.18
  4. Step 4: Simplify right side
    690,898.55x = 279,688,675,783.11
  5. Step 5: Solve for x
    x = 279,688,675,783.11/690,898.55
  6. Step 6: Final answer
    x = 404,818.74

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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.