Home / 899,120.64-1,240,811.52-496,738.56

Finding the Fourth Proportional to 899,120.64, 1,240,811.52 and 496,738.56

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Solution

The fourth proportional to 899,120.64, 1,240,811.52 and 496,738.56 is: 685,513.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,120.64 : 1,240,811.52 = 496,738.56 : x
  2. Step 2: Convert to fraction form
    899,120.64/1,240,811.52 = 496,738.56/x
  3. Step 3: Cross multiply
    899,120.64x = 1,240,811.52 × 496,738.56
  4. Step 4: Simplify right side
    899,120.64x = 616,358,927,676.21
  5. Step 5: Solve for x
    x = 616,358,927,676.21/899,120.64
  6. Step 6: Final answer
    x = 685,513.04

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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.