Home / 550,037.20-759,105.12-308,320.24

Finding the Fourth Proportional to 550,037.20, 759,105.12 and 308,320.24

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Solution

The fourth proportional to 550,037.20, 759,105.12 and 308,320.24 is: 425,512.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,037.20 : 759,105.12 = 308,320.24 : x
  2. Step 2: Convert to fraction form
    550,037.20/759,105.12 = 308,320.24/x
  3. Step 3: Cross multiply
    550,037.20x = 759,105.12 × 308,320.24
  4. Step 4: Simplify right side
    550,037.20x = 234,047,472,783.63
  5. Step 5: Solve for x
    x = 234,047,472,783.63/550,037.20
  6. Step 6: Final answer
    x = 425,512.08

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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.