Home / 743,485.92-1,115,224.02-211,007.28

Finding the Fourth Proportional to 743,485.92, 1,115,224.02 and 211,007.28

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Solution

The fourth proportional to 743,485.92, 1,115,224.02 and 211,007.28 is: 316,509.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,485.92 : 1,115,224.02 = 211,007.28 : x
  2. Step 2: Convert to fraction form
    743,485.92/1,115,224.02 = 211,007.28/x
  3. Step 3: Cross multiply
    743,485.92x = 1,115,224.02 × 211,007.28
  4. Step 4: Simplify right side
    743,485.92x = 235,320,387,050.87
  5. Step 5: Solve for x
    x = 235,320,387,050.87/743,485.92
  6. Step 6: Final answer
    x = 316,509.54

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1.5x scale

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.