Home / 1,005,922.32-1,388,145.12-553,213.36

Finding the Fourth Proportional to 1,005,922.32, 1,388,145.12 and 553,213.36

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Solution

The fourth proportional to 1,005,922.32, 1,388,145.12 and 553,213.36 is: 763,419.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,922.32 : 1,388,145.12 = 553,213.36 : x
  2. Step 2: Convert to fraction form
    1,005,922.32/1,388,145.12 = 553,213.36/x
  3. Step 3: Cross multiply
    1,005,922.32x = 1,388,145.12 × 553,213.36
  4. Step 4: Simplify right side
    1,005,922.32x = 767,940,426,002.80
  5. Step 5: Solve for x
    x = 767,940,426,002.80/1,005,922.32
  6. Step 6: Final answer
    x = 763,419.21

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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.