Home / 774,008.04-1,160,716.81-369,128.73

Finding the Fourth Proportional to 774,008.04, 1,160,716.81 and 369,128.73

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Solution

The fourth proportional to 774,008.04, 1,160,716.81 and 369,128.73 is: 553,552.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,008.04 : 1,160,716.81 = 369,128.73 : x
  2. Step 2: Convert to fraction form
    774,008.04/1,160,716.81 = 369,128.73/x
  3. Step 3: Cross multiply
    774,008.04x = 1,160,716.81 × 369,128.73
  4. Step 4: Simplify right side
    774,008.04x = 428,453,921,964.95
  5. Step 5: Solve for x
    x = 428,453,921,964.95/774,008.04
  6. Step 6: Final answer
    x = 553,552.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.