Home / 1,123,276.64-1,549,940.75-639,851.23

Finding the Fourth Proportional to 1,123,276.64, 1,549,940.75 and 639,851.23

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Solution

The fourth proportional to 1,123,276.64, 1,549,940.75 and 639,851.23 is: 882,891.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,276.64 : 1,549,940.75 = 639,851.23 : x
  2. Step 2: Convert to fraction form
    1,123,276.64/1,549,940.75 = 639,851.23/x
  3. Step 3: Cross multiply
    1,123,276.64x = 1,549,940.75 × 639,851.23
  4. Step 4: Simplify right side
    1,123,276.64x = 991,731,487,564.92
  5. Step 5: Solve for x
    x = 991,731,487,564.92/1,123,276.64
  6. Step 6: Final answer
    x = 882,891.58

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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.