Home / 1,256,605.20-1,884,821.40-403,664.40

Finding the Fourth Proportional to 1,256,605.20, 1,884,821.40 and 403,664.40

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Solution

The fourth proportional to 1,256,605.20, 1,884,821.40 and 403,664.40 is: 605,468.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,605.20 : 1,884,821.40 = 403,664.40 : x
  2. Step 2: Convert to fraction form
    1,256,605.20/1,884,821.40 = 403,664.40/x
  3. Step 3: Cross multiply
    1,256,605.20x = 1,884,821.40 × 403,664.40
  4. Step 4: Simplify right side
    1,256,605.20x = 760,835,299,538.16
  5. Step 5: Solve for x
    x = 760,835,299,538.16/1,256,605.20
  6. Step 6: Final answer
    x = 605,468.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.