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Finding the Fourth Proportional to 553,900.98, 830,519.33 and 254,005.88

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Solution

The fourth proportional to 553,900.98, 830,519.33 and 254,005.88 is: 380,856.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,900.98 : 830,519.33 = 254,005.88 : x
  2. Step 2: Convert to fraction form
    553,900.98/830,519.33 = 254,005.88/x
  3. Step 3: Cross multiply
    553,900.98x = 830,519.33 × 254,005.88
  4. Step 4: Simplify right side
    553,900.98x = 210,956,787,851.03
  5. Step 5: Solve for x
    x = 210,956,787,851.03/553,900.98
  6. Step 6: Final answer
    x = 380,856.50

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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.