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Finding the Fourth Proportional to 702,188.19, 969,019.20 and 396,328.95

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Solution

The fourth proportional to 702,188.19, 969,019.20 and 396,328.95 is: 546,933.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,188.19 : 969,019.20 = 396,328.95 : x
  2. Step 2: Convert to fraction form
    702,188.19/969,019.20 = 396,328.95/x
  3. Step 3: Cross multiply
    702,188.19x = 969,019.20 × 396,328.95
  4. Step 4: Simplify right side
    702,188.19x = 384,050,362,065.84
  5. Step 5: Solve for x
    x = 384,050,362,065.84/702,188.19
  6. Step 6: Final answer
    x = 546,933.67

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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.