Home / 1,420,407.94-1,960,151.28-775,828.57

Finding the Fourth Proportional to 1,420,407.94, 1,960,151.28 and 775,828.57

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Solution

The fourth proportional to 1,420,407.94, 1,960,151.28 and 775,828.57 is: 1,070,637.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,407.94 : 1,960,151.28 = 775,828.57 : x
  2. Step 2: Convert to fraction form
    1,420,407.94/1,960,151.28 = 775,828.57/x
  3. Step 3: Cross multiply
    1,420,407.94x = 1,960,151.28 × 775,828.57
  4. Step 4: Simplify right side
    1,420,407.94x = 1,520,741,364,546.07
  5. Step 5: Solve for x
    x = 1,520,741,364,546.07/1,420,407.94
  6. Step 6: Final answer
    x = 1,070,637.05

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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.