Home / 812,759.82-1,122,156.60-507,301.52

Finding the Fourth Proportional to 812,759.82, 1,122,156.60 and 507,301.52

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Solution

The fourth proportional to 812,759.82, 1,122,156.60 and 507,301.52 is: 700,418.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,759.82 : 1,122,156.60 = 507,301.52 : x
  2. Step 2: Convert to fraction form
    812,759.82/1,122,156.60 = 507,301.52/x
  3. Step 3: Cross multiply
    812,759.82x = 1,122,156.60 × 507,301.52
  4. Step 4: Simplify right side
    812,759.82x = 569,271,748,858.03
  5. Step 5: Solve for x
    x = 569,271,748,858.03/812,759.82
  6. Step 6: Final answer
    x = 700,418.17

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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.