Home / 1,420,700.62-1,960,568.17-776,131.58

Finding the Fourth Proportional to 1,420,700.62, 1,960,568.17 and 776,131.58

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Solution

The fourth proportional to 1,420,700.62, 1,960,568.17 and 776,131.58 is: 1,071,062.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,700.62 : 1,960,568.17 = 776,131.58 : x
  2. Step 2: Convert to fraction form
    1,420,700.62/1,960,568.17 = 776,131.58/x
  3. Step 3: Cross multiply
    1,420,700.62x = 1,960,568.17 × 776,131.58
  4. Step 4: Simplify right side
    1,420,700.62x = 1,521,658,871,479.81
  5. Step 5: Solve for x
    x = 1,521,658,871,479.81/1,420,700.62
  6. Step 6: Final answer
    x = 1,071,062.30

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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.