Home / 1,238,749.60-1,857,663.60-490,640.80

Finding the Fourth Proportional to 1,238,749.60, 1,857,663.60 and 490,640.80

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Solution

The fourth proportional to 1,238,749.60, 1,857,663.60 and 490,640.80 is: 735,778.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,749.60 : 1,857,663.60 = 490,640.80 : x
  2. Step 2: Convert to fraction form
    1,238,749.60/1,857,663.60 = 490,640.80/x
  3. Step 3: Cross multiply
    1,238,749.60x = 1,857,663.60 × 490,640.80
  4. Step 4: Simplify right side
    1,238,749.60x = 911,445,554,834.88
  5. Step 5: Solve for x
    x = 911,445,554,834.88/1,238,749.60
  6. Step 6: Final answer
    x = 735,778.69

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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.