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Finding the Fourth Proportional to 505,373.02, 697,416.21 and 275,932.28

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Solution

The fourth proportional to 505,373.02, 697,416.21 and 275,932.28 is: 380,787.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,373.02 : 697,416.21 = 275,932.28 : x
  2. Step 2: Convert to fraction form
    505,373.02/697,416.21 = 275,932.28/x
  3. Step 3: Cross multiply
    505,373.02x = 697,416.21 × 275,932.28
  4. Step 4: Simplify right side
    505,373.02x = 192,439,646,677.80
  5. Step 5: Solve for x
    x = 192,439,646,677.80/505,373.02
  6. Step 6: Final answer
    x = 380,787.34

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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.