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Finding the Fourth Proportional to 507,377.32, 699,697.70 and 303,395.83

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Solution

The fourth proportional to 507,377.32, 699,697.70 and 303,395.83 is: 418,397.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,377.32 : 699,697.70 = 303,395.83 : x
  2. Step 2: Convert to fraction form
    507,377.32/699,697.70 = 303,395.83/x
  3. Step 3: Cross multiply
    507,377.32x = 699,697.70 × 303,395.83
  4. Step 4: Simplify right side
    507,377.32x = 212,285,364,440.59
  5. Step 5: Solve for x
    x = 212,285,364,440.59/507,377.32
  6. Step 6: Final answer
    x = 418,397.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.