Home / 739,068.45-1,108,766.70-339,612.90

Finding the Fourth Proportional to 739,068.45, 1,108,766.70 and 339,612.90

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Solution

The fourth proportional to 739,068.45, 1,108,766.70 and 339,612.90 is: 509,494.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,068.45 : 1,108,766.70 = 339,612.90 : x
  2. Step 2: Convert to fraction form
    739,068.45/1,108,766.70 = 339,612.90/x
  3. Step 3: Cross multiply
    739,068.45x = 1,108,766.70 × 339,612.90
  4. Step 4: Simplify right side
    739,068.45x = 376,551,474,410.43
  5. Step 5: Solve for x
    x = 376,551,474,410.43/739,068.45
  6. Step 6: Final answer
    x = 509,494.72

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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.