Home / 1,243,029.76-1,721,877.74-1,217,835.52

Finding the Fourth Proportional to 1,243,029.76, 1,721,877.74 and 1,217,835.52

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Solution

The fourth proportional to 1,243,029.76, 1,721,877.74 and 1,217,835.52 is: 1,686,978.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,029.76 : 1,721,877.74 = 1,217,835.52 : x
  2. Step 2: Convert to fraction form
    1,243,029.76/1,721,877.74 = 1,217,835.52/x
  3. Step 3: Cross multiply
    1,243,029.76x = 1,721,877.74 × 1,217,835.52
  4. Step 4: Simplify right side
    1,243,029.76x = 2,096,963,872,869.32
  5. Step 5: Solve for x
    x = 2,096,963,872,869.32/1,243,029.76
  6. Step 6: Final answer
    x = 1,686,978.01

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.