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Finding the Fourth Proportional to 660,522.60, 911,541.60 and 374,036.40

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Solution

The fourth proportional to 660,522.60, 911,541.60 and 374,036.40 is: 516,181.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,522.60 : 911,541.60 = 374,036.40 : x
  2. Step 2: Convert to fraction form
    660,522.60/911,541.60 = 374,036.40/x
  3. Step 3: Cross multiply
    660,522.60x = 911,541.60 × 374,036.40
  4. Step 4: Simplify right side
    660,522.60x = 340,949,738,514.24
  5. Step 5: Solve for x
    x = 340,949,738,514.24/660,522.60
  6. Step 6: Final answer
    x = 516,181.79

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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.