Home / 1,885,989.52-2,829,406.19-687,911.89

Finding the Fourth Proportional to 1,885,989.52, 2,829,406.19 and 687,911.89

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Solution

The fourth proportional to 1,885,989.52, 2,829,406.19 and 687,911.89 is: 1,032,021.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,885,989.52 : 2,829,406.19 = 687,911.89 : x
  2. Step 2: Convert to fraction form
    1,885,989.52/2,829,406.19 = 687,911.89/x
  3. Step 3: Cross multiply
    1,885,989.52x = 2,829,406.19 × 687,911.89
  4. Step 4: Simplify right side
    1,885,989.52x = 1,946,382,158,402.17
  5. Step 5: Solve for x
    x = 1,946,382,158,402.17/1,885,989.52
  6. Step 6: Final answer
    x = 1,032,021.72

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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.