Home / 1,238,663.20-1,858,048.80-340,081.60

Finding the Fourth Proportional to 1,238,663.20, 1,858,048.80 and 340,081.60

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Solution

The fourth proportional to 1,238,663.20, 1,858,048.80 and 340,081.60 is: 510,137.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,663.20 : 1,858,048.80 = 340,081.60 : x
  2. Step 2: Convert to fraction form
    1,238,663.20/1,858,048.80 = 340,081.60/x
  3. Step 3: Cross multiply
    1,238,663.20x = 1,858,048.80 × 340,081.60
  4. Step 4: Simplify right side
    1,238,663.20x = 631,888,208,782.08
  5. Step 5: Solve for x
    x = 631,888,208,782.08/1,238,663.20
  6. Step 6: Final answer
    x = 510,137.23

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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.