Home / 1,387,497.80-2,080,209.90-757,123.40

Finding the Fourth Proportional to 1,387,497.80, 2,080,209.90 and 757,123.40

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Solution

The fourth proportional to 1,387,497.80, 2,080,209.90 and 757,123.40 is: 1,135,119.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,497.80 : 2,080,209.90 = 757,123.40 : x
  2. Step 2: Convert to fraction form
    1,387,497.80/2,080,209.90 = 757,123.40/x
  3. Step 3: Cross multiply
    1,387,497.80x = 2,080,209.90 × 757,123.40
  4. Step 4: Simplify right side
    1,387,497.80x = 1,574,975,592,201.66
  5. Step 5: Solve for x
    x = 1,574,975,592,201.66/1,387,497.80
  6. Step 6: Final answer
    x = 1,135,119.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.