Home / 1,240,920.62-1,712,656.90-757,764.49

Finding the Fourth Proportional to 1,240,920.62, 1,712,656.90 and 757,764.49

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Solution

The fourth proportional to 1,240,920.62, 1,712,656.90 and 757,764.49 is: 1,045,828.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,920.62 : 1,712,656.90 = 757,764.49 : x
  2. Step 2: Convert to fraction form
    1,240,920.62/1,712,656.90 = 757,764.49/x
  3. Step 3: Cross multiply
    1,240,920.62x = 1,712,656.90 × 757,764.49
  4. Step 4: Simplify right side
    1,240,920.62x = 1,297,790,573,810.20
  5. Step 5: Solve for x
    x = 1,297,790,573,810.20/1,240,920.62
  6. Step 6: Final answer
    x = 1,045,828.84

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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.