Home / 1,142,622.72-1,713,346.56-670,239.36

Finding the Fourth Proportional to 1,142,622.72, 1,713,346.56 and 670,239.36

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Solution

The fourth proportional to 1,142,622.72, 1,713,346.56 and 670,239.36 is: 1,005,014.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142,622.72 : 1,713,346.56 = 670,239.36 : x
  2. Step 2: Convert to fraction form
    1,142,622.72/1,713,346.56 = 670,239.36/x
  3. Step 3: Cross multiply
    1,142,622.72x = 1,713,346.56 × 670,239.36
  4. Step 4: Simplify right side
    1,142,622.72x = 1,148,352,301,832.60
  5. Step 5: Solve for x
    x = 1,148,352,301,832.60/1,142,622.72
  6. Step 6: Final answer
    x = 1,005,014.41

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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.