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Finding the Fourth Proportional to 660,224.52, 911,117.16 and 373,738.32

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Solution

The fourth proportional to 660,224.52, 911,117.16 and 373,738.32 is: 515,763.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,224.52 : 911,117.16 = 373,738.32 : x
  2. Step 2: Convert to fraction form
    660,224.52/911,117.16 = 373,738.32/x
  3. Step 3: Cross multiply
    660,224.52x = 911,117.16 × 373,738.32
  4. Step 4: Simplify right side
    660,224.52x = 340,519,396,701.57
  5. Step 5: Solve for x
    x = 340,519,396,701.57/660,224.52
  6. Step 6: Final answer
    x = 515,763.03

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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.