Home / 771,084.36-1,063,969.46-484,401.42

Finding the Fourth Proportional to 771,084.36, 1,063,969.46 and 484,401.42

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Solution

The fourth proportional to 771,084.36, 1,063,969.46 and 484,401.42 is: 668,394.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,084.36 : 1,063,969.46 = 484,401.42 : x
  2. Step 2: Convert to fraction form
    771,084.36/1,063,969.46 = 484,401.42/x
  3. Step 3: Cross multiply
    771,084.36x = 1,063,969.46 × 484,401.42
  4. Step 4: Simplify right side
    771,084.36x = 515,388,317,260.63
  5. Step 5: Solve for x
    x = 515,388,317,260.63/771,084.36
  6. Step 6: Final answer
    x = 668,394.20

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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.