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Finding the Fourth Proportional to 660,219.13, 911,124.06 and 373,733.07

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Solution

The fourth proportional to 660,219.13, 911,124.06 and 373,733.07 is: 515,763.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,219.13 : 911,124.06 = 373,733.07 : x
  2. Step 2: Convert to fraction form
    660,219.13/911,124.06 = 373,733.07/x
  3. Step 3: Cross multiply
    660,219.13x = 911,124.06 × 373,733.07
  4. Step 4: Simplify right side
    660,219.13x = 340,517,192,094.66
  5. Step 5: Solve for x
    x = 340,517,192,094.66/660,219.13
  6. Step 6: Final answer
    x = 515,763.90

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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.