Home / 589,121.75-812,919.57-330,962.87

Finding the Fourth Proportional to 589,121.75, 812,919.57 and 330,962.87

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Solution

The fourth proportional to 589,121.75, 812,919.57 and 330,962.87 is: 456,690.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,121.75 : 812,919.57 = 330,962.87 : x
  2. Step 2: Convert to fraction form
    589,121.75/812,919.57 = 330,962.87/x
  3. Step 3: Cross multiply
    589,121.75x = 812,919.57 × 330,962.87
  4. Step 4: Simplify right side
    589,121.75x = 269,046,193,966.37
  5. Step 5: Solve for x
    x = 269,046,193,966.37/589,121.75
  6. Step 6: Final answer
    x = 456,690.31

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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.