Home / 1,008,276.40-1,391,405.88-555,583.60

Finding the Fourth Proportional to 1,008,276.40, 1,391,405.88 and 555,583.60

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Solution

The fourth proportional to 1,008,276.40, 1,391,405.88 and 555,583.60 is: 766,696.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,276.40 : 1,391,405.88 = 555,583.60 : x
  2. Step 2: Convert to fraction form
    1,008,276.40/1,391,405.88 = 555,583.60/x
  3. Step 3: Cross multiply
    1,008,276.40x = 1,391,405.88 × 555,583.60
  4. Step 4: Simplify right side
    1,008,276.40x = 773,042,287,871.57
  5. Step 5: Solve for x
    x = 773,042,287,871.57/1,008,276.40
  6. Step 6: Final answer
    x = 766,696.80

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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.