Home / 790,105.20-1,184,946.40-221,454.48

Finding the Fourth Proportional to 790,105.20, 1,184,946.40 and 221,454.48

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Solution

The fourth proportional to 790,105.20, 1,184,946.40 and 221,454.48 is: 332,122.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,105.20 : 1,184,946.40 = 221,454.48 : x
  2. Step 2: Convert to fraction form
    790,105.20/1,184,946.40 = 221,454.48/x
  3. Step 3: Cross multiply
    790,105.20x = 1,184,946.40 × 221,454.48
  4. Step 4: Simplify right side
    790,105.20x = 262,411,688,839.87
  5. Step 5: Solve for x
    x = 262,411,688,839.87/790,105.20
  6. Step 6: Final answer
    x = 332,122.47

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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.