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Finding the Fourth Proportional to 702,608.76, 969,600.27 and 380,317.86

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Solution

The fourth proportional to 702,608.76, 969,600.27 and 380,317.86 is: 524,838.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,608.76 : 969,600.27 = 380,317.86 : x
  2. Step 2: Convert to fraction form
    702,608.76/969,600.27 = 380,317.86/x
  3. Step 3: Cross multiply
    702,608.76x = 969,600.27 × 380,317.86
  4. Step 4: Simplify right side
    702,608.76x = 368,756,299,741.82
  5. Step 5: Solve for x
    x = 368,756,299,741.82/702,608.76
  6. Step 6: Final answer
    x = 524,838.74

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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.