Home / 765,241.54-1,055,748.09-478,652.74

Finding the Fourth Proportional to 765,241.54, 1,055,748.09 and 478,652.74

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Solution

The fourth proportional to 765,241.54, 1,055,748.09 and 478,652.74 is: 660,362.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,241.54 : 1,055,748.09 = 478,652.74 : x
  2. Step 2: Convert to fraction form
    765,241.54/1,055,748.09 = 478,652.74/x
  3. Step 3: Cross multiply
    765,241.54x = 1,055,748.09 × 478,652.74
  4. Step 4: Simplify right side
    765,241.54x = 505,336,716,028.27
  5. Step 5: Solve for x
    x = 505,336,716,028.27/765,241.54
  6. Step 6: Final answer
    x = 660,362.37

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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.