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Finding the Fourth Proportional to 547,465.85, 755,495.39 and 305,752.67

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Solution

The fourth proportional to 547,465.85, 755,495.39 and 305,752.67 is: 421,934.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,465.85 : 755,495.39 = 305,752.67 : x
  2. Step 2: Convert to fraction form
    547,465.85/755,495.39 = 305,752.67/x
  3. Step 3: Cross multiply
    547,465.85x = 755,495.39 × 305,752.67
  4. Step 4: Simplify right side
    547,465.85x = 230,994,729,652.10
  5. Step 5: Solve for x
    x = 230,994,729,652.10/547,465.85
  6. Step 6: Final answer
    x = 421,934.50

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1.5x scale

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.