Home / 1,557,661.50-2,149,572.87-842,269.50

Finding the Fourth Proportional to 1,557,661.50, 2,149,572.87 and 842,269.50

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Solution

The fourth proportional to 1,557,661.50, 2,149,572.87 and 842,269.50 is: 1,162,331.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557,661.50 : 2,149,572.87 = 842,269.50 : x
  2. Step 2: Convert to fraction form
    1,557,661.50/2,149,572.87 = 842,269.50/x
  3. Step 3: Cross multiply
    1,557,661.50x = 2,149,572.87 × 842,269.50
  4. Step 4: Simplify right side
    1,557,661.50x = 1,810,519,666,428.47
  5. Step 5: Solve for x
    x = 1,810,519,666,428.47/1,557,661.50
  6. Step 6: Final answer
    x = 1,162,331.91

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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.