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Finding the Fourth Proportional to 524,713.80, 788,820.30 and 447,731.40

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Solution

The fourth proportional to 524,713.80, 788,820.30 and 447,731.40 is: 673,090.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,713.80 : 788,820.30 = 447,731.40 : x
  2. Step 2: Convert to fraction form
    524,713.80/788,820.30 = 447,731.40/x
  3. Step 3: Cross multiply
    524,713.80x = 788,820.30 × 447,731.40
  4. Step 4: Simplify right side
    524,713.80x = 353,179,617,267.42
  5. Step 5: Solve for x
    x = 353,179,617,267.42/524,713.80
  6. Step 6: Final answer
    x = 673,090.01

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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.