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Finding the Fourth Proportional to 660,577.01, 911,600.93 and 358,771.01

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Solution

The fourth proportional to 660,577.01, 911,600.93 and 358,771.01 is: 495,106.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,577.01 : 911,600.93 = 358,771.01 : x
  2. Step 2: Convert to fraction form
    660,577.01/911,600.93 = 358,771.01/x
  3. Step 3: Cross multiply
    660,577.01x = 911,600.93 × 358,771.01
  4. Step 4: Simplify right side
    660,577.01x = 327,055,982,711.96
  5. Step 5: Solve for x
    x = 327,055,982,711.96/660,577.01
  6. Step 6: Final answer
    x = 495,106.52

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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.