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Finding the Fourth Proportional to 660,550.45, 911,554.48 and 358,744.45

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Solution

The fourth proportional to 660,550.45, 911,554.48 and 358,744.45 is: 495,064.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,550.45 : 911,554.48 = 358,744.45 : x
  2. Step 2: Convert to fraction form
    660,550.45/911,554.48 = 358,744.45/x
  3. Step 3: Cross multiply
    660,550.45x = 911,554.48 × 358,744.45
  4. Step 4: Simplify right side
    660,550.45x = 327,015,104,221.14
  5. Step 5: Solve for x
    x = 327,015,104,221.14/660,550.45
  6. Step 6: Final answer
    x = 495,064.54

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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.