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Finding the Fourth Proportional to 571,029.80, 856,544.70 and 359,983.40

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Solution

The fourth proportional to 571,029.80, 856,544.70 and 359,983.40 is: 539,975.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,029.80 : 856,544.70 = 359,983.40 : x
  2. Step 2: Convert to fraction form
    571,029.80/856,544.70 = 359,983.40/x
  3. Step 3: Cross multiply
    571,029.80x = 856,544.70 × 359,983.40
  4. Step 4: Simplify right side
    571,029.80x = 308,341,873,357.98
  5. Step 5: Solve for x
    x = 308,341,873,357.98/571,029.80
  6. Step 6: Final answer
    x = 539,975.10

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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.