Home / 1,436,958-2,155,803.12-426,116.88

Finding the Fourth Proportional to 1,436,958, 2,155,803.12 and 426,116.88

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Solution

The fourth proportional to 1,436,958, 2,155,803.12 and 426,116.88 is: 639,283.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,436,958 : 2,155,803.12 = 426,116.88 : x
  2. Step 2: Convert to fraction form
    1,436,958/2,155,803.12 = 426,116.88/x
  3. Step 3: Cross multiply
    1,436,958x = 2,155,803.12 × 426,116.88
  4. Step 4: Simplify right side
    1,436,958x = 918,624,099,388.67
  5. Step 5: Solve for x
    x = 918,624,099,388.67/1,436,958
  6. Step 6: Final answer
    x = 639,283.89

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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.