Home / 1,091,283.18-1,505,733.28-661,668.90

Finding the Fourth Proportional to 1,091,283.18, 1,505,733.28 and 661,668.90

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Solution

The fourth proportional to 1,091,283.18, 1,505,733.28 and 661,668.90 is: 912,959.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,283.18 : 1,505,733.28 = 661,668.90 : x
  2. Step 2: Convert to fraction form
    1,091,283.18/1,505,733.28 = 661,668.90/x
  3. Step 3: Cross multiply
    1,091,283.18x = 1,505,733.28 × 661,668.90
  4. Step 4: Simplify right side
    1,091,283.18x = 996,296,884,240.07
  5. Step 5: Solve for x
    x = 996,296,884,240.07/1,091,283.18
  6. Step 6: Final answer
    x = 912,959.07

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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.