Home / 870,588.30-1,201,411.85-488,615.09

Finding the Fourth Proportional to 870,588.30, 1,201,411.85 and 488,615.09

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Solution

The fourth proportional to 870,588.30, 1,201,411.85 and 488,615.09 is: 674,288.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,588.30 : 1,201,411.85 = 488,615.09 : x
  2. Step 2: Convert to fraction form
    870,588.30/1,201,411.85 = 488,615.09/x
  3. Step 3: Cross multiply
    870,588.30x = 1,201,411.85 × 488,615.09
  4. Step 4: Simplify right side
    870,588.30x = 587,027,950,764.68
  5. Step 5: Solve for x
    x = 587,027,950,764.68/870,588.30
  6. Step 6: Final answer
    x = 674,288.81

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1.5x scale

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.