Home / 1,557,046.20-2,148,318.53-912,120.41

Finding the Fourth Proportional to 1,557,046.20, 2,148,318.53 and 912,120.41

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Solution

The fourth proportional to 1,557,046.20, 2,148,318.53 and 912,120.41 is: 1,258,488.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557,046.20 : 2,148,318.53 = 912,120.41 : x
  2. Step 2: Convert to fraction form
    1,557,046.20/2,148,318.53 = 912,120.41/x
  3. Step 3: Cross multiply
    1,557,046.20x = 2,148,318.53 × 912,120.41
  4. Step 4: Simplify right side
    1,557,046.20x = 1,959,525,163,092.00
  5. Step 5: Solve for x
    x = 1,959,525,163,092.00/1,557,046.20
  6. Step 6: Final answer
    x = 1,258,488.77

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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.