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Finding the Fourth Proportional to 984,755.56, 1,477,133.16 and 311,309.68

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Solution

The fourth proportional to 984,755.56, 1,477,133.16 and 311,309.68 is: 466,964.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,755.56 : 1,477,133.16 = 311,309.68 : x
  2. Step 2: Convert to fraction form
    984,755.56/1,477,133.16 = 311,309.68/x
  3. Step 3: Cross multiply
    984,755.56x = 1,477,133.16 × 311,309.68
  4. Step 4: Simplify right side
    984,755.56x = 459,845,851,356.99
  5. Step 5: Solve for x
    x = 459,845,851,356.99/984,755.56
  6. Step 6: Final answer
    x = 466,964.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.