Home / 1,587,308.80-2,190,502.22-862,170.68

Finding the Fourth Proportional to 1,587,308.80, 2,190,502.22 and 862,170.68

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Solution

The fourth proportional to 1,587,308.80, 2,190,502.22 and 862,170.68 is: 1,189,804.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,308.80 : 2,190,502.22 = 862,170.68 : x
  2. Step 2: Convert to fraction form
    1,587,308.80/2,190,502.22 = 862,170.68/x
  3. Step 3: Cross multiply
    1,587,308.80x = 2,190,502.22 × 862,170.68
  4. Step 4: Simplify right side
    1,587,308.80x = 1,888,586,788,558.91
  5. Step 5: Solve for x
    x = 1,888,586,788,558.91/1,587,308.80
  6. Step 6: Final answer
    x = 1,189,804.27

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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.