Home / 1,238,629.86-1,857,854.54-555,728.20

Finding the Fourth Proportional to 1,238,629.86, 1,857,854.54 and 555,728.20

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Solution

The fourth proportional to 1,238,629.86, 1,857,854.54 and 555,728.20 is: 833,551.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,629.86 : 1,857,854.54 = 555,728.20 : x
  2. Step 2: Convert to fraction form
    1,238,629.86/1,857,854.54 = 555,728.20/x
  3. Step 3: Cross multiply
    1,238,629.86x = 1,857,854.54 × 555,728.20
  4. Step 4: Simplify right side
    1,238,629.86x = 1,032,462,159,376.03
  5. Step 5: Solve for x
    x = 1,032,462,159,376.03/1,238,629.86
  6. Step 6: Final answer
    x = 833,551.81

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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.