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Finding the Fourth Proportional to 702,916.10, 970,028.84 and 380,626.22

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Solution

The fourth proportional to 702,916.10, 970,028.84 and 380,626.22 is: 525,266.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,916.10 : 970,028.84 = 380,626.22 : x
  2. Step 2: Convert to fraction form
    702,916.10/970,028.84 = 380,626.22/x
  3. Step 3: Cross multiply
    702,916.10x = 970,028.84 × 380,626.22
  4. Step 4: Simplify right side
    702,916.10x = 369,218,408,757.05
  5. Step 5: Solve for x
    x = 369,218,408,757.05/702,916.10
  6. Step 6: Final answer
    x = 525,266.68

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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.