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Finding the Fourth Proportional to 655,710.87, 983,838.62 and 313,982.40

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Solution

The fourth proportional to 655,710.87, 983,838.62 and 313,982.40 is: 471,104.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,710.87 : 983,838.62 = 313,982.40 : x
  2. Step 2: Convert to fraction form
    655,710.87/983,838.62 = 313,982.40/x
  3. Step 3: Cross multiply
    655,710.87x = 983,838.62 × 313,982.40
  4. Step 4: Simplify right side
    655,710.87x = 308,908,011,120.29
  5. Step 5: Solve for x
    x = 308,908,011,120.29/655,710.87
  6. Step 6: Final answer
    x = 471,104.00

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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.