Home / 1,587,283.67-2,190,457.74-862,143.50

Finding the Fourth Proportional to 1,587,283.67, 2,190,457.74 and 862,143.50

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Solution

The fourth proportional to 1,587,283.67, 2,190,457.74 and 862,143.50 is: 1,189,761.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,283.67 : 2,190,457.74 = 862,143.50 : x
  2. Step 2: Convert to fraction form
    1,587,283.67/2,190,457.74 = 862,143.50/x
  3. Step 3: Cross multiply
    1,587,283.67x = 2,190,457.74 × 862,143.50
  4. Step 4: Simplify right side
    1,587,283.67x = 1,888,488,894,103.99
  5. Step 5: Solve for x
    x = 1,888,488,894,103.99/1,587,283.67
  6. Step 6: Final answer
    x = 1,189,761.43

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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.