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Finding the Fourth Proportional to 702,621.84, 969,618.60 and 380,334.59

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Solution

The fourth proportional to 702,621.84, 969,618.60 and 380,334.59 is: 524,861.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,621.84 : 969,618.60 = 380,334.59 : x
  2. Step 2: Convert to fraction form
    702,621.84/969,618.60 = 380,334.59/x
  3. Step 3: Cross multiply
    702,621.84x = 969,618.60 × 380,334.59
  4. Step 4: Simplify right side
    702,621.84x = 368,779,491,475.35
  5. Step 5: Solve for x
    x = 368,779,491,475.35/702,621.84
  6. Step 6: Final answer
    x = 524,861.98

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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.