Home / 1,491,912-2,058,812.40-812,853.28

Finding the Fourth Proportional to 1,491,912, 2,058,812.40 and 812,853.28

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Solution

The fourth proportional to 1,491,912, 2,058,812.40 and 812,853.28 is: 1,121,723.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491,912 : 2,058,812.40 = 812,853.28 : x
  2. Step 2: Convert to fraction form
    1,491,912/2,058,812.40 = 812,853.28/x
  3. Step 3: Cross multiply
    1,491,912x = 2,058,812.40 × 812,853.28
  4. Step 4: Simplify right side
    1,491,912x = 1,673,512,412,244.67
  5. Step 5: Solve for x
    x = 1,673,512,412,244.67/1,491,912
  6. Step 6: Final answer
    x = 1,121,723.27

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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.