Home / 1,420,925.84-1,960,854.78-776,332.20

Finding the Fourth Proportional to 1,420,925.84, 1,960,854.78 and 776,332.20

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Solution

The fourth proportional to 1,420,925.84, 1,960,854.78 and 776,332.20 is: 1,071,325.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,925.84 : 1,960,854.78 = 776,332.20 : x
  2. Step 2: Convert to fraction form
    1,420,925.84/1,960,854.78 = 776,332.20/x
  3. Step 3: Cross multiply
    1,420,925.84x = 1,960,854.78 × 776,332.20
  4. Step 4: Simplify right side
    1,420,925.84x = 1,522,274,704,472.56
  5. Step 5: Solve for x
    x = 1,522,274,704,472.56/1,420,925.84
  6. Step 6: Final answer
    x = 1,071,325.93

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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.