Home / 1,420,931.84-1,960,863.06-776,338.20

Finding the Fourth Proportional to 1,420,931.84, 1,960,863.06 and 776,338.20

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Solution

The fourth proportional to 1,420,931.84, 1,960,863.06 and 776,338.20 is: 1,071,334.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,931.84 : 1,960,863.06 = 776,338.20 : x
  2. Step 2: Convert to fraction form
    1,420,931.84/1,960,863.06 = 776,338.20/x
  3. Step 3: Cross multiply
    1,420,931.84x = 1,960,863.06 × 776,338.20
  4. Step 4: Simplify right side
    1,420,931.84x = 1,522,292,898,446.89
  5. Step 5: Solve for x
    x = 1,522,292,898,446.89/1,420,931.84
  6. Step 6: Final answer
    x = 1,071,334.22

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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.