Home / 1,138,392-1,570,996.32-629,106.24

Finding the Fourth Proportional to 1,138,392, 1,570,996.32 and 629,106.24

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Solution

The fourth proportional to 1,138,392, 1,570,996.32 and 629,106.24 is: 868,175.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,392 : 1,570,996.32 = 629,106.24 : x
  2. Step 2: Convert to fraction form
    1,138,392/1,570,996.32 = 629,106.24/x
  3. Step 3: Cross multiply
    1,138,392x = 1,570,996.32 × 629,106.24
  4. Step 4: Simplify right side
    1,138,392x = 988,323,587,929.04
  5. Step 5: Solve for x
    x = 988,323,587,929.04/1,138,392
  6. Step 6: Final answer
    x = 868,175.10

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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.