Home / 507,972.29-700,974.81-290,138.18

Finding the Fourth Proportional to 507,972.29, 700,974.81 and 290,138.18

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Solution

The fourth proportional to 507,972.29, 700,974.81 and 290,138.18 is: 400,375.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,972.29 : 700,974.81 = 290,138.18 : x
  2. Step 2: Convert to fraction form
    507,972.29/700,974.81 = 290,138.18/x
  3. Step 3: Cross multiply
    507,972.29x = 700,974.81 × 290,138.18
  4. Step 4: Simplify right side
    507,972.29x = 203,379,555,599.25
  5. Step 5: Solve for x
    x = 203,379,555,599.25/507,972.29
  6. Step 6: Final answer
    x = 400,375.30

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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.