Home / 557,429.41-769,721.08-419,368.91

Finding the Fourth Proportional to 557,429.41, 769,721.08 and 419,368.91

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Solution

The fourth proportional to 557,429.41, 769,721.08 and 419,368.91 is: 579,081.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,429.41 : 769,721.08 = 419,368.91 : x
  2. Step 2: Convert to fraction form
    557,429.41/769,721.08 = 419,368.91/x
  3. Step 3: Cross multiply
    557,429.41x = 769,721.08 × 419,368.91
  4. Step 4: Simplify right side
    557,429.41x = 322,797,087,771.60
  5. Step 5: Solve for x
    x = 322,797,087,771.60/557,429.41
  6. Step 6: Final answer
    x = 579,081.55

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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.