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Finding the Fourth Proportional to 660,765.34, 911,783.04 and 366,407.66

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Solution

The fourth proportional to 660,765.34, 911,783.04 and 366,407.66 is: 505,602.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,765.34 : 911,783.04 = 366,407.66 : x
  2. Step 2: Convert to fraction form
    660,765.34/911,783.04 = 366,407.66/x
  3. Step 3: Cross multiply
    660,765.34x = 911,783.04 × 366,407.66
  4. Step 4: Simplify right side
    660,765.34x = 334,084,290,114.09
  5. Step 5: Solve for x
    x = 334,084,290,114.09/660,765.34
  6. Step 6: Final answer
    x = 505,602.02

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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.