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Finding the Fourth Proportional to 702,399.46, 969,313.70 and 380,109.47

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Solution

The fourth proportional to 702,399.46, 969,313.70 and 380,109.47 is: 524,552.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,399.46 : 969,313.70 = 380,109.47 : x
  2. Step 2: Convert to fraction form
    702,399.46/969,313.70 = 380,109.47/x
  3. Step 3: Cross multiply
    702,399.46x = 969,313.70 × 380,109.47
  4. Step 4: Simplify right side
    702,399.46x = 368,445,316,770.74
  5. Step 5: Solve for x
    x = 368,445,316,770.74/702,399.46
  6. Step 6: Final answer
    x = 524,552.39

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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.