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Finding the Fourth Proportional to 660,452, 911,435.10 and 358,646

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Solution

The fourth proportional to 660,452, 911,435.10 and 358,646 is: 494,937.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,452 : 911,435.10 = 358,646 : x
  2. Step 2: Convert to fraction form
    660,452/911,435.10 = 358,646/x
  3. Step 3: Cross multiply
    660,452x = 911,435.10 × 358,646
  4. Step 4: Simplify right side
    660,452x = 326,882,552,874.60
  5. Step 5: Solve for x
    x = 326,882,552,874.60/660,452
  6. Step 6: Final answer
    x = 494,937.64

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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.