Home / 1,420,409.94-1,960,154.04-775,830.57

Finding the Fourth Proportional to 1,420,409.94, 1,960,154.04 and 775,830.57

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Solution

The fourth proportional to 1,420,409.94, 1,960,154.04 and 775,830.57 is: 1,070,639.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,409.94 : 1,960,154.04 = 775,830.57 : x
  2. Step 2: Convert to fraction form
    1,420,409.94/1,960,154.04 = 775,830.57/x
  3. Step 3: Cross multiply
    1,420,409.94x = 1,960,154.04 × 775,830.57
  4. Step 4: Simplify right side
    1,420,409.94x = 1,520,747,426,141.00
  5. Step 5: Solve for x
    x = 1,520,747,426,141.00/1,420,409.94
  6. Step 6: Final answer
    x = 1,070,639.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.