Home / 1,332,130.50-1,838,383.83-728,518.50

Finding the Fourth Proportional to 1,332,130.50, 1,838,383.83 and 728,518.50

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Solution

The fourth proportional to 1,332,130.50, 1,838,383.83 and 728,518.50 is: 1,005,379.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332,130.50 : 1,838,383.83 = 728,518.50 : x
  2. Step 2: Convert to fraction form
    1,332,130.50/1,838,383.83 = 728,518.50/x
  3. Step 3: Cross multiply
    1,332,130.50x = 1,838,383.83 × 728,518.50
  4. Step 4: Simplify right side
    1,332,130.50x = 1,339,296,630,255.86
  5. Step 5: Solve for x
    x = 1,339,296,630,255.86/1,332,130.50
  6. Step 6: Final answer
    x = 1,005,379.45

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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.