Home / 1,127,968.26-1,687,998.78-808,472.40

Finding the Fourth Proportional to 1,127,968.26, 1,687,998.78 and 808,472.40

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Solution

The fourth proportional to 1,127,968.26, 1,687,998.78 and 808,472.40 is: 1,209,874.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,968.26 : 1,687,998.78 = 808,472.40 : x
  2. Step 2: Convert to fraction form
    1,127,968.26/1,687,998.78 = 808,472.40/x
  3. Step 3: Cross multiply
    1,127,968.26x = 1,687,998.78 × 808,472.40
  4. Step 4: Simplify right side
    1,127,968.26x = 1,364,700,424,863.67
  5. Step 5: Solve for x
    x = 1,364,700,424,863.67/1,127,968.26
  6. Step 6: Final answer
    x = 1,209,874.85

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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.