Home / 306,401.13-459,601.79-81,762.39

Finding the Fourth Proportional to 306,401.13, 459,601.79 and 81,762.39

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Solution

The fourth proportional to 306,401.13, 459,601.79 and 81,762.39 is: 122,643.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,401.13 : 459,601.79 = 81,762.39 : x
  2. Step 2: Convert to fraction form
    306,401.13/459,601.79 = 81,762.39/x
  3. Step 3: Cross multiply
    306,401.13x = 459,601.79 × 81,762.39
  4. Step 4: Simplify right side
    306,401.13x = 37,578,140,389.87
  5. Step 5: Solve for x
    x = 37,578,140,389.87/306,401.13
  6. Step 6: Final answer
    x = 122,643.61

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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.