Home / 1,420,209.66-1,959,937.70-839,930.22

Finding the Fourth Proportional to 1,420,209.66, 1,959,937.70 and 839,930.22

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Solution

The fourth proportional to 1,420,209.66, 1,959,937.70 and 839,930.22 is: 1,159,132.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,209.66 : 1,959,937.70 = 839,930.22 : x
  2. Step 2: Convert to fraction form
    1,420,209.66/1,959,937.70 = 839,930.22/x
  3. Step 3: Cross multiply
    1,420,209.66x = 1,959,937.70 × 839,930.22
  4. Step 4: Simplify right side
    1,420,209.66x = 1,646,210,904,465.95
  5. Step 5: Solve for x
    x = 1,646,210,904,465.95/1,420,209.66
  6. Step 6: Final answer
    x = 1,159,132.31

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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.