Home / 1,803,207.89-2,488,457.49-987,398.57

Finding the Fourth Proportional to 1,803,207.89, 2,488,457.49 and 987,398.57

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Solution

The fourth proportional to 1,803,207.89, 2,488,457.49 and 987,398.57 is: 1,362,626.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,803,207.89 : 2,488,457.49 = 987,398.57 : x
  2. Step 2: Convert to fraction form
    1,803,207.89/2,488,457.49 = 987,398.57/x
  3. Step 3: Cross multiply
    1,803,207.89x = 2,488,457.49 × 987,398.57
  4. Step 4: Simplify right side
    1,803,207.89x = 2,457,099,367,131.79
  5. Step 5: Solve for x
    x = 2,457,099,367,131.79/1,803,207.89
  6. Step 6: Final answer
    x = 1,362,626.78

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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.