Home / 1,150,146.32-1,587,228.36-640,879.76

Finding the Fourth Proportional to 1,150,146.32, 1,587,228.36 and 640,879.76

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Solution

The fourth proportional to 1,150,146.32, 1,587,228.36 and 640,879.76 is: 884,428.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,150,146.32 : 1,587,228.36 = 640,879.76 : x
  2. Step 2: Convert to fraction form
    1,150,146.32/1,587,228.36 = 640,879.76/x
  3. Step 3: Cross multiply
    1,150,146.32x = 1,587,228.36 × 640,879.76
  4. Step 4: Simplify right side
    1,150,146.32x = 1,017,222,530,421.99
  5. Step 5: Solve for x
    x = 1,017,222,530,421.99/1,150,146.32
  6. Step 6: Final answer
    x = 884,428.80

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1.5x scale

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.