Home / 839,931.20-1,263,007.20-703,073.60

Finding the Fourth Proportional to 839,931.20, 1,263,007.20 and 703,073.60

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Solution

The fourth proportional to 839,931.20, 1,263,007.20 and 703,073.60 is: 1,057,213.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,931.20 : 1,263,007.20 = 703,073.60 : x
  2. Step 2: Convert to fraction form
    839,931.20/1,263,007.20 = 703,073.60/x
  3. Step 3: Cross multiply
    839,931.20x = 1,263,007.20 × 703,073.60
  4. Step 4: Simplify right side
    839,931.20x = 887,987,018,929.92
  5. Step 5: Solve for x
    x = 887,987,018,929.92/839,931.20
  6. Step 6: Final answer
    x = 1,057,213.99

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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.