Home / 550,022.06-759,065.52-308,304.70

Finding the Fourth Proportional to 550,022.06, 759,065.52 and 308,304.70

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Solution

The fourth proportional to 550,022.06, 759,065.52 and 308,304.70 is: 425,480.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,022.06 : 759,065.52 = 308,304.70 : x
  2. Step 2: Convert to fraction form
    550,022.06/759,065.52 = 308,304.70/x
  3. Step 3: Cross multiply
    550,022.06x = 759,065.52 × 308,304.70
  4. Step 4: Simplify right side
    550,022.06x = 234,023,467,423.94
  5. Step 5: Solve for x
    x = 234,023,467,423.94/550,022.06
  6. Step 6: Final answer
    x = 425,480.15

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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.