Home / 509,938.20-763,352.10-298,949.40

Finding the Fourth Proportional to 509,938.20, 763,352.10 and 298,949.40

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Solution

The fourth proportional to 509,938.20, 763,352.10 and 298,949.40 is: 447,512.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,938.20 : 763,352.10 = 298,949.40 : x
  2. Step 2: Convert to fraction form
    509,938.20/763,352.10 = 298,949.40/x
  3. Step 3: Cross multiply
    509,938.20x = 763,352.10 × 298,949.40
  4. Step 4: Simplify right side
    509,938.20x = 228,203,652,283.74
  5. Step 5: Solve for x
    x = 228,203,652,283.74/509,938.20
  6. Step 6: Final answer
    x = 447,512.37

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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.