Home / 490,740.72-736,111.32-153,807.60

Finding the Fourth Proportional to 490,740.72, 736,111.32 and 153,807.60

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Solution

The fourth proportional to 490,740.72, 736,111.32 and 153,807.60 is: 230,711.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,740.72 : 736,111.32 = 153,807.60 : x
  2. Step 2: Convert to fraction form
    490,740.72/736,111.32 = 153,807.60/x
  3. Step 3: Cross multiply
    490,740.72x = 736,111.32 × 153,807.60
  4. Step 4: Simplify right side
    490,740.72x = 113,219,515,462.03
  5. Step 5: Solve for x
    x = 113,219,515,462.03/490,740.72
  6. Step 6: Final answer
    x = 230,711.48

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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.