Home / 870,864.08-1,201,781.88-488,881.04

Finding the Fourth Proportional to 870,864.08, 1,201,781.88 and 488,881.04

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Solution

The fourth proportional to 870,864.08, 1,201,781.88 and 488,881.04 is: 674,649.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,864.08 : 1,201,781.88 = 488,881.04 : x
  2. Step 2: Convert to fraction form
    870,864.08/1,201,781.88 = 488,881.04/x
  3. Step 3: Cross multiply
    870,864.08x = 1,201,781.88 × 488,881.04
  4. Step 4: Simplify right side
    870,864.08x = 587,528,375,347.56
  5. Step 5: Solve for x
    x = 587,528,375,347.56/870,864.08
  6. Step 6: Final answer
    x = 674,649.91

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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.