Home / 1,425,116.40-1,966,662.54-771,743.56

Finding the Fourth Proportional to 1,425,116.40, 1,966,662.54 and 771,743.56

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Solution

The fourth proportional to 1,425,116.40, 1,966,662.54 and 771,743.56 is: 1,065,007.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,116.40 : 1,966,662.54 = 771,743.56 : x
  2. Step 2: Convert to fraction form
    1,425,116.40/1,966,662.54 = 771,743.56/x
  3. Step 3: Cross multiply
    1,425,116.40x = 1,966,662.54 × 771,743.56
  4. Step 4: Simplify right side
    1,425,116.40x = 1,517,759,149,938.24
  5. Step 5: Solve for x
    x = 1,517,759,149,938.24/1,425,116.40
  6. Step 6: Final answer
    x = 1,065,007.15

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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.