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Finding the Fourth Proportional to 553,455.60, 830,930.04 and 354,165.36

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Solution

The fourth proportional to 553,455.60, 830,930.04 and 354,165.36 is: 531,725.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,455.60 : 830,930.04 = 354,165.36 : x
  2. Step 2: Convert to fraction form
    553,455.60/830,930.04 = 354,165.36/x
  3. Step 3: Cross multiply
    553,455.60x = 830,930.04 × 354,165.36
  4. Step 4: Simplify right side
    553,455.60x = 294,286,636,751.41
  5. Step 5: Solve for x
    x = 294,286,636,751.41/553,455.60
  6. Step 6: Final answer
    x = 531,725.83

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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.