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Finding the Fourth Proportional to 655,903.18, 983,517 and 300,612.88

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Solution

The fourth proportional to 655,903.18, 983,517 and 300,612.88 is: 450,764.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,903.18 : 983,517 = 300,612.88 : x
  2. Step 2: Convert to fraction form
    655,903.18/983,517 = 300,612.88/x
  3. Step 3: Cross multiply
    655,903.18x = 983,517 × 300,612.88
  4. Step 4: Simplify right side
    655,903.18x = 295,657,877,898.96
  5. Step 5: Solve for x
    x = 295,657,877,898.96/655,903.18
  6. Step 6: Final answer
    x = 450,764.51

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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.