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Finding the Fourth Proportional to 812,757.82, 1,122,153.84 and 507,299.52

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Solution

The fourth proportional to 812,757.82, 1,122,153.84 and 507,299.52 is: 700,415.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,757.82 : 1,122,153.84 = 507,299.52 : x
  2. Step 2: Convert to fraction form
    812,757.82/1,122,153.84 = 507,299.52/x
  3. Step 3: Cross multiply
    812,757.82x = 1,122,153.84 × 507,299.52
  4. Step 4: Simplify right side
    812,757.82x = 569,268,104,398.16
  5. Step 5: Solve for x
    x = 569,268,104,398.16/812,757.82
  6. Step 6: Final answer
    x = 700,415.41

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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.