Home / 1,299,119.16-1,948,553.44-400,319.57

Finding the Fourth Proportional to 1,299,119.16, 1,948,553.44 and 400,319.57

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Solution

The fourth proportional to 1,299,119.16, 1,948,553.44 and 400,319.57 is: 600,440.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,119.16 : 1,948,553.44 = 400,319.57 : x
  2. Step 2: Convert to fraction form
    1,299,119.16/1,948,553.44 = 400,319.57/x
  3. Step 3: Cross multiply
    1,299,119.16x = 1,948,553.44 × 400,319.57
  4. Step 4: Simplify right side
    1,299,119.16x = 780,044,069,258.69
  5. Step 5: Solve for x
    x = 780,044,069,258.69/1,299,119.16
  6. Step 6: Final answer
    x = 600,440.74

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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.