Home / 1,087,469.15-1,500,509.54-628,415.45

Finding the Fourth Proportional to 1,087,469.15, 1,500,509.54 and 628,415.45

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Solution

The fourth proportional to 1,087,469.15, 1,500,509.54 and 628,415.45 is: 867,098.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,469.15 : 1,500,509.54 = 628,415.45 : x
  2. Step 2: Convert to fraction form
    1,087,469.15/1,500,509.54 = 628,415.45/x
  3. Step 3: Cross multiply
    1,087,469.15x = 1,500,509.54 × 628,415.45
  4. Step 4: Simplify right side
    1,087,469.15x = 942,943,377,503.80
  5. Step 5: Solve for x
    x = 942,943,377,503.80/1,087,469.15
  6. Step 6: Final answer
    x = 867,098.97

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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.