Home / 689,994.84-1,034,932.94-420,052.88

Finding the Fourth Proportional to 689,994.84, 1,034,932.94 and 420,052.88

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Solution

The fourth proportional to 689,994.84, 1,034,932.94 and 420,052.88 is: 630,043.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,994.84 : 1,034,932.94 = 420,052.88 : x
  2. Step 2: Convert to fraction form
    689,994.84/1,034,932.94 = 420,052.88/x
  3. Step 3: Cross multiply
    689,994.84x = 1,034,932.94 × 420,052.88
  4. Step 4: Simplify right side
    689,994.84x = 434,726,562,053.87
  5. Step 5: Solve for x
    x = 434,726,562,053.87/689,994.84
  6. Step 6: Final answer
    x = 630,043.21

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1.5x scale

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.