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Finding the Fourth Proportional to 870,888.80, 1,201,743.60 and 488,828

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Solution

The fourth proportional to 870,888.80, 1,201,743.60 and 488,828 is: 674,536.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,888.80 : 1,201,743.60 = 488,828 : x
  2. Step 2: Convert to fraction form
    870,888.80/1,201,743.60 = 488,828/x
  3. Step 3: Cross multiply
    870,888.80x = 1,201,743.60 × 488,828
  4. Step 4: Simplify right side
    870,888.80x = 587,445,920,500.80
  5. Step 5: Solve for x
    x = 587,445,920,500.80/870,888.80
  6. Step 6: Final answer
    x = 674,536.08

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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.