Home / 1,420,924.80-1,960,904.42-776,384.98

Finding the Fourth Proportional to 1,420,924.80, 1,960,904.42 and 776,384.98

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Solution

The fourth proportional to 1,420,924.80, 1,960,904.42 and 776,384.98 is: 1,071,426.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,924.80 : 1,960,904.42 = 776,384.98 : x
  2. Step 2: Convert to fraction form
    1,420,924.80/1,960,904.42 = 776,384.98/x
  3. Step 3: Cross multiply
    1,420,924.80x = 1,960,904.42 × 776,384.98
  4. Step 4: Simplify right side
    1,420,924.80x = 1,522,416,738,903.61
  5. Step 5: Solve for x
    x = 1,522,416,738,903.61/1,420,924.80
  6. Step 6: Final answer
    x = 1,071,426.68

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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.