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Finding the Fourth Proportional to 518,809.37, 716,116.46 and 304,018.62

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Solution

The fourth proportional to 518,809.37, 716,116.46 and 304,018.62 is: 419,639.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,809.37 : 716,116.46 = 304,018.62 : x
  2. Step 2: Convert to fraction form
    518,809.37/716,116.46 = 304,018.62/x
  3. Step 3: Cross multiply
    518,809.37x = 716,116.46 × 304,018.62
  4. Step 4: Simplify right side
    518,809.37x = 217,712,736,408.39
  5. Step 5: Solve for x
    x = 217,712,736,408.39/518,809.37
  6. Step 6: Final answer
    x = 419,639.18

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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.