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Finding the Fourth Proportional to 555,323.68, 765,956.95 and 340,549.35

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Solution

The fourth proportional to 555,323.68, 765,956.95 and 340,549.35 is: 469,719.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,323.68 : 765,956.95 = 340,549.35 : x
  2. Step 2: Convert to fraction form
    555,323.68/765,956.95 = 340,549.35/x
  3. Step 3: Cross multiply
    555,323.68x = 765,956.95 × 340,549.35
  4. Step 4: Simplify right side
    555,323.68x = 260,846,141,450.48
  5. Step 5: Solve for x
    x = 260,846,141,450.48/555,323.68
  6. Step 6: Final answer
    x = 469,719.10

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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.