Home / 1,420,210.01-1,959,938.18-839,930.57

Finding the Fourth Proportional to 1,420,210.01, 1,959,938.18 and 839,930.57

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Solution

The fourth proportional to 1,420,210.01, 1,959,938.18 and 839,930.57 is: 1,159,132.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,210.01 : 1,959,938.18 = 839,930.57 : x
  2. Step 2: Convert to fraction form
    1,420,210.01/1,959,938.18 = 839,930.57/x
  3. Step 3: Cross multiply
    1,420,210.01x = 1,959,938.18 × 839,930.57
  4. Step 4: Simplify right side
    1,420,210.01x = 1,646,211,986,436.16
  5. Step 5: Solve for x
    x = 1,646,211,986,436.16/1,420,210.01
  6. Step 6: Final answer
    x = 1,159,132.79

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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.