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Finding the Fourth Proportional to 535,258.98, 738,604.08 and 308,977.38

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Solution

The fourth proportional to 535,258.98, 738,604.08 and 308,977.38 is: 426,358.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,258.98 : 738,604.08 = 308,977.38 : x
  2. Step 2: Convert to fraction form
    535,258.98/738,604.08 = 308,977.38/x
  3. Step 3: Cross multiply
    535,258.98x = 738,604.08 × 308,977.38
  4. Step 4: Simplify right side
    535,258.98x = 228,211,953,495.71
  5. Step 5: Solve for x
    x = 228,211,953,495.71/535,258.98
  6. Step 6: Final answer
    x = 426,358.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.