Home / 870,588.48-1,201,412.10-488,615.27

Finding the Fourth Proportional to 870,588.48, 1,201,412.10 and 488,615.27

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Solution

The fourth proportional to 870,588.48, 1,201,412.10 and 488,615.27 is: 674,289.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,588.48 : 1,201,412.10 = 488,615.27 : x
  2. Step 2: Convert to fraction form
    870,588.48/1,201,412.10 = 488,615.27/x
  3. Step 3: Cross multiply
    870,588.48x = 1,201,412.10 × 488,615.27
  4. Step 4: Simplify right side
    870,588.48x = 587,028,292,837.25
  5. Step 5: Solve for x
    x = 587,028,292,837.25/870,588.48
  6. Step 6: Final answer
    x = 674,289.06

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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.