Home / 1,757,711.70-2,636,567.55-428,015.70

Finding the Fourth Proportional to 1,757,711.70, 2,636,567.55 and 428,015.70

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Solution

The fourth proportional to 1,757,711.70, 2,636,567.55 and 428,015.70 is: 642,023.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,757,711.70 : 2,636,567.55 = 428,015.70 : x
  2. Step 2: Convert to fraction form
    1,757,711.70/2,636,567.55 = 428,015.70/x
  3. Step 3: Cross multiply
    1,757,711.70x = 2,636,567.55 × 428,015.70
  4. Step 4: Simplify right side
    1,757,711.70x = 1,128,492,305,510.53
  5. Step 5: Solve for x
    x = 1,128,492,305,510.53/1,757,711.70
  6. Step 6: Final answer
    x = 642,023.55

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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.