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Finding the Fourth Proportional to 702,375.11, 969,280.21 and 380,085.17

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Solution

The fourth proportional to 702,375.11, 969,280.21 and 380,085.17 is: 524,518.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,375.11 : 969,280.21 = 380,085.17 : x
  2. Step 2: Convert to fraction form
    702,375.11/969,280.21 = 380,085.17/x
  3. Step 3: Cross multiply
    702,375.11x = 969,280.21 × 380,085.17
  4. Step 4: Simplify right side
    702,375.11x = 368,409,033,395.49
  5. Step 5: Solve for x
    x = 368,409,033,395.49/702,375.11
  6. Step 6: Final answer
    x = 524,518.92

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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.