Home / 920,682.48-1,270,491.84-507,138.87

Finding the Fourth Proportional to 920,682.48, 1,270,491.84 and 507,138.87

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Solution

The fourth proportional to 920,682.48, 1,270,491.84 and 507,138.87 is: 699,824.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,682.48 : 1,270,491.84 = 507,138.87 : x
  2. Step 2: Convert to fraction form
    920,682.48/1,270,491.84 = 507,138.87/x
  3. Step 3: Cross multiply
    920,682.48x = 1,270,491.84 × 507,138.87
  4. Step 4: Simplify right side
    920,682.48x = 644,315,796,081.82
  5. Step 5: Solve for x
    x = 644,315,796,081.82/920,682.48
  6. Step 6: Final answer
    x = 699,824.11

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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.