Home / 879,200.40-1,318,786.06-280,153.42

Finding the Fourth Proportional to 879,200.40, 1,318,786.06 and 280,153.42

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Solution

The fourth proportional to 879,200.40, 1,318,786.06 and 280,153.42 is: 420,225.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,200.40 : 1,318,786.06 = 280,153.42 : x
  2. Step 2: Convert to fraction form
    879,200.40/1,318,786.06 = 280,153.42/x
  3. Step 3: Cross multiply
    879,200.40x = 1,318,786.06 × 280,153.42
  4. Step 4: Simplify right side
    879,200.40x = 369,462,424,957.33
  5. Step 5: Solve for x
    x = 369,462,424,957.33/879,200.40
  6. Step 6: Final answer
    x = 420,225.50

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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.