Home / 772,914.60-1,066,628.57-428,773.05

Finding the Fourth Proportional to 772,914.60, 1,066,628.57 and 428,773.05

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Solution

The fourth proportional to 772,914.60, 1,066,628.57 and 428,773.05 is: 591,710.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,914.60 : 1,066,628.57 = 428,773.05 : x
  2. Step 2: Convert to fraction form
    772,914.60/1,066,628.57 = 428,773.05/x
  3. Step 3: Cross multiply
    772,914.60x = 1,066,628.57 × 428,773.05
  4. Step 4: Simplify right side
    772,914.60x = 457,341,583,032.17
  5. Step 5: Solve for x
    x = 457,341,583,032.17/772,914.60
  6. Step 6: Final answer
    x = 591,710.37

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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.