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Finding the Fourth Proportional to 508,785.84, 763,331.76 and 306,601.32

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Solution

The fourth proportional to 508,785.84, 763,331.76 and 306,601.32 is: 459,994.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,785.84 : 763,331.76 = 306,601.32 : x
  2. Step 2: Convert to fraction form
    508,785.84/763,331.76 = 306,601.32/x
  3. Step 3: Cross multiply
    508,785.84x = 763,331.76 × 306,601.32
  4. Step 4: Simplify right side
    508,785.84x = 234,038,525,213.92
  5. Step 5: Solve for x
    x = 234,038,525,213.92/508,785.84
  6. Step 6: Final answer
    x = 459,994.18

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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.