Home / 1,125,651.12-1,688,498.26-415,313.52

Finding the Fourth Proportional to 1,125,651.12, 1,688,498.26 and 415,313.52

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Solution

The fourth proportional to 1,125,651.12, 1,688,498.26 and 415,313.52 is: 622,978.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,651.12 : 1,688,498.26 = 415,313.52 : x
  2. Step 2: Convert to fraction form
    1,125,651.12/1,688,498.26 = 415,313.52/x
  3. Step 3: Cross multiply
    1,125,651.12x = 1,688,498.26 × 415,313.52
  4. Step 4: Simplify right side
    1,125,651.12x = 701,256,155,874.48
  5. Step 5: Solve for x
    x = 701,256,155,874.48/1,125,651.12
  6. Step 6: Final answer
    x = 622,978.24

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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.