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Finding the Fourth Proportional to 553,920.70, 830,548.95 and 254,025.67

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Solution

The fourth proportional to 553,920.70, 830,548.95 and 254,025.67 is: 380,886.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,920.70 : 830,548.95 = 254,025.67 : x
  2. Step 2: Convert to fraction form
    553,920.70/830,548.95 = 254,025.67/x
  3. Step 3: Cross multiply
    553,920.70x = 830,548.95 × 254,025.67
  4. Step 4: Simplify right side
    553,920.70x = 210,980,753,491.55
  5. Step 5: Solve for x
    x = 210,980,753,491.55/553,920.70
  6. Step 6: Final answer
    x = 380,886.21

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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.