Home / 1,142,002.78-1,576,015.44-632,705.20

Finding the Fourth Proportional to 1,142,002.78, 1,576,015.44 and 632,705.20

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Solution

The fourth proportional to 1,142,002.78, 1,576,015.44 and 632,705.20 is: 873,161.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142,002.78 : 1,576,015.44 = 632,705.20 : x
  2. Step 2: Convert to fraction form
    1,142,002.78/1,576,015.44 = 632,705.20/x
  3. Step 3: Cross multiply
    1,142,002.78x = 1,576,015.44 × 632,705.20
  4. Step 4: Simplify right side
    1,142,002.78x = 997,153,164,168.29
  5. Step 5: Solve for x
    x = 997,153,164,168.29/1,142,002.78
  6. Step 6: Final answer
    x = 873,161.77

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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.