Home / 1,356,619.68-1,872,142.56-847,617.12

Finding the Fourth Proportional to 1,356,619.68, 1,872,142.56 and 847,617.12

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Solution

The fourth proportional to 1,356,619.68, 1,872,142.56 and 847,617.12 is: 1,169,716.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,356,619.68 : 1,872,142.56 = 847,617.12 : x
  2. Step 2: Convert to fraction form
    1,356,619.68/1,872,142.56 = 847,617.12/x
  3. Step 3: Cross multiply
    1,356,619.68x = 1,872,142.56 × 847,617.12
  4. Step 4: Simplify right side
    1,356,619.68x = 1,586,860,084,936.63
  5. Step 5: Solve for x
    x = 1,586,860,084,936.63/1,356,619.68
  6. Step 6: Final answer
    x = 1,169,716.25

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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.