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Finding the Fourth Proportional to 688,729.30, 950,118.45 and 459,392.50

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Solution

The fourth proportional to 688,729.30, 950,118.45 and 459,392.50 is: 633,742.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,729.30 : 950,118.45 = 459,392.50 : x
  2. Step 2: Convert to fraction form
    688,729.30/950,118.45 = 459,392.50/x
  3. Step 3: Cross multiply
    688,729.30x = 950,118.45 × 459,392.50
  4. Step 4: Simplify right side
    688,729.30x = 436,477,290,041.63
  5. Step 5: Solve for x
    x = 436,477,290,041.63/688,729.30
  6. Step 6: Final answer
    x = 633,742.88

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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.