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Finding the Fourth Proportional to 553,604.70, 829,884.60 and 300,512.10

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Solution

The fourth proportional to 553,604.70, 829,884.60 and 300,512.10 is: 450,484.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,604.70 : 829,884.60 = 300,512.10 : x
  2. Step 2: Convert to fraction form
    553,604.70/829,884.60 = 300,512.10/x
  3. Step 3: Cross multiply
    553,604.70x = 829,884.60 × 300,512.10
  4. Step 4: Simplify right side
    553,604.70x = 249,390,363,903.66
  5. Step 5: Solve for x
    x = 249,390,363,903.66/553,604.70
  6. Step 6: Final answer
    x = 450,484.55

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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.