Home / 1,299,712.01-1,949,915.77-401,117.45

Finding the Fourth Proportional to 1,299,712.01, 1,949,915.77 and 401,117.45

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Solution

The fourth proportional to 1,299,712.01, 1,949,915.77 and 401,117.45 is: 601,783.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,712.01 : 1,949,915.77 = 401,117.45 : x
  2. Step 2: Convert to fraction form
    1,299,712.01/1,949,915.77 = 401,117.45/x
  3. Step 3: Cross multiply
    1,299,712.01x = 1,949,915.77 × 401,117.45
  4. Step 4: Simplify right side
    1,299,712.01x = 782,145,230,624.81
  5. Step 5: Solve for x
    x = 782,145,230,624.81/1,299,712.01
  6. Step 6: Final answer
    x = 601,783.49

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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.