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Finding the Fourth Proportional to 702,626.36, 969,624.81 and 380,339.10

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Solution

The fourth proportional to 702,626.36, 969,624.81 and 380,339.10 is: 524,868.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,626.36 : 969,624.81 = 380,339.10 : x
  2. Step 2: Convert to fraction form
    702,626.36/969,624.81 = 380,339.10/x
  3. Step 3: Cross multiply
    702,626.36x = 969,624.81 × 380,339.10
  4. Step 4: Simplify right side
    702,626.36x = 368,786,227,573.07
  5. Step 5: Solve for x
    x = 368,786,227,573.07/702,626.36
  6. Step 6: Final answer
    x = 524,868.20

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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.