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Finding the Fourth Proportional to 518,529.06, 715,728.26 and 300,792.76

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Solution

The fourth proportional to 518,529.06, 715,728.26 and 300,792.76 is: 415,185.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,529.06 : 715,728.26 = 300,792.76 : x
  2. Step 2: Convert to fraction form
    518,529.06/715,728.26 = 300,792.76/x
  3. Step 3: Cross multiply
    518,529.06x = 715,728.26 × 300,792.76
  4. Step 4: Simplify right side
    518,529.06x = 215,285,880,382.04
  5. Step 5: Solve for x
    x = 215,285,880,382.04/518,529.06
  6. Step 6: Final answer
    x = 415,185.75

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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.