Home / 1,116,915.48-1,541,878.74-687,563.64

Finding the Fourth Proportional to 1,116,915.48, 1,541,878.74 and 687,563.64

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Solution

The fourth proportional to 1,116,915.48, 1,541,878.74 and 687,563.64 is: 949,167.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116,915.48 : 1,541,878.74 = 687,563.64 : x
  2. Step 2: Convert to fraction form
    1,116,915.48/1,541,878.74 = 687,563.64/x
  3. Step 3: Cross multiply
    1,116,915.48x = 1,541,878.74 × 687,563.64
  4. Step 4: Simplify right side
    1,116,915.48x = 1,060,139,758,913.01
  5. Step 5: Solve for x
    x = 1,060,139,758,913.01/1,116,915.48
  6. Step 6: Final answer
    x = 949,167.40

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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.