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Finding the Fourth Proportional to 578,704.88, 798,604.08 and 320,581.02

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Solution

The fourth proportional to 578,704.88, 798,604.08 and 320,581.02 is: 442,397.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,704.88 : 798,604.08 = 320,581.02 : x
  2. Step 2: Convert to fraction form
    578,704.88/798,604.08 = 320,581.02/x
  3. Step 3: Cross multiply
    578,704.88x = 798,604.08 × 320,581.02
  4. Step 4: Simplify right side
    578,704.88x = 256,017,308,301.83
  5. Step 5: Solve for x
    x = 256,017,308,301.83/578,704.88
  6. Step 6: Final answer
    x = 442,397.01

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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.