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Finding the Fourth Proportional to 507,348.36, 700,099.20 and 289,555.97

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Solution

The fourth proportional to 507,348.36, 700,099.20 and 289,555.97 is: 399,563.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,348.36 : 700,099.20 = 289,555.97 : x
  2. Step 2: Convert to fraction form
    507,348.36/700,099.20 = 289,555.97/x
  3. Step 3: Cross multiply
    507,348.36x = 700,099.20 × 289,555.97
  4. Step 4: Simplify right side
    507,348.36x = 202,717,899,451.73
  5. Step 5: Solve for x
    x = 202,717,899,451.73/507,348.36
  6. Step 6: Final answer
    x = 399,563.53

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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.