Home / 1,245,771.60-1,868,657.40-615,915.60

Finding the Fourth Proportional to 1,245,771.60, 1,868,657.40 and 615,915.60

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Solution

The fourth proportional to 1,245,771.60, 1,868,657.40 and 615,915.60 is: 923,873.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,771.60 : 1,868,657.40 = 615,915.60 : x
  2. Step 2: Convert to fraction form
    1,245,771.60/1,868,657.40 = 615,915.60/x
  3. Step 3: Cross multiply
    1,245,771.60x = 1,868,657.40 × 615,915.60
  4. Step 4: Simplify right side
    1,245,771.60x = 1,150,935,243,715.44
  5. Step 5: Solve for x
    x = 1,150,935,243,715.44/1,245,771.60
  6. Step 6: Final answer
    x = 923,873.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.