Home / 1,555,232-2,146,220.16-839,840

Finding the Fourth Proportional to 1,555,232, 2,146,220.16 and 839,840

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Solution

The fourth proportional to 1,555,232, 2,146,220.16 and 839,840 is: 1,158,979.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,232 : 2,146,220.16 = 839,840 : x
  2. Step 2: Convert to fraction form
    1,555,232/2,146,220.16 = 839,840/x
  3. Step 3: Cross multiply
    1,555,232x = 2,146,220.16 × 839,840
  4. Step 4: Simplify right side
    1,555,232x = 1,802,481,539,174.40
  5. Step 5: Solve for x
    x = 1,802,481,539,174.40/1,555,232
  6. Step 6: Final answer
    x = 1,158,979.20

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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.