Home / 1,102,315.72-1,521,077.88-618,934

Finding the Fourth Proportional to 1,102,315.72, 1,521,077.88 and 618,934

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Solution

The fourth proportional to 1,102,315.72, 1,521,077.88 and 618,934 is: 854,062.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,315.72 : 1,521,077.88 = 618,934 : x
  2. Step 2: Convert to fraction form
    1,102,315.72/1,521,077.88 = 618,934/x
  3. Step 3: Cross multiply
    1,102,315.72x = 1,521,077.88 × 618,934
  4. Step 4: Simplify right side
    1,102,315.72x = 941,446,816,579.92
  5. Step 5: Solve for x
    x = 941,446,816,579.92/1,102,315.72
  6. Step 6: Final answer
    x = 854,062.77

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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.