Home / 1,128,120.48-1,692,697.46-488,619.81

Finding the Fourth Proportional to 1,128,120.48, 1,692,697.46 and 488,619.81

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Solution

The fourth proportional to 1,128,120.48, 1,692,697.46 and 488,619.81 is: 733,153.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,120.48 : 1,692,697.46 = 488,619.81 : x
  2. Step 2: Convert to fraction form
    1,128,120.48/1,692,697.46 = 488,619.81/x
  3. Step 3: Cross multiply
    1,128,120.48x = 1,692,697.46 × 488,619.81
  4. Step 4: Simplify right side
    1,128,120.48x = 827,085,500,386.10
  5. Step 5: Solve for x
    x = 827,085,500,386.10/1,128,120.48
  6. Step 6: Final answer
    x = 733,153.52

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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.