Home / 1,038,048.20-1,557,072.30-870,086.60

Finding the Fourth Proportional to 1,038,048.20, 1,557,072.30 and 870,086.60

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Solution

The fourth proportional to 1,038,048.20, 1,557,072.30 and 870,086.60 is: 1,305,129.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,048.20 : 1,557,072.30 = 870,086.60 : x
  2. Step 2: Convert to fraction form
    1,038,048.20/1,557,072.30 = 870,086.60/x
  3. Step 3: Cross multiply
    1,038,048.20x = 1,557,072.30 × 870,086.60
  4. Step 4: Simplify right side
    1,038,048.20x = 1,354,787,743,461.18
  5. Step 5: Solve for x
    x = 1,354,787,743,461.18/1,038,048.20
  6. Step 6: Final answer
    x = 1,305,129.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.