Home / 1,078,981.46-1,488,772.14-620,007.36

Finding the Fourth Proportional to 1,078,981.46, 1,488,772.14 and 620,007.36

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Solution

The fourth proportional to 1,078,981.46, 1,488,772.14 and 620,007.36 is: 855,482.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,981.46 : 1,488,772.14 = 620,007.36 : x
  2. Step 2: Convert to fraction form
    1,078,981.46/1,488,772.14 = 620,007.36/x
  3. Step 3: Cross multiply
    1,078,981.46x = 1,488,772.14 × 620,007.36
  4. Step 4: Simplify right side
    1,078,981.46x = 923,049,689,860.68
  5. Step 5: Solve for x
    x = 923,049,689,860.68/1,078,981.46
  6. Step 6: Final answer
    x = 855,482.44

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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.