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Finding the Fourth Proportional to 702,617.76, 969,612.69 and 380,326.86

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Solution

The fourth proportional to 702,617.76, 969,612.69 and 380,326.86 is: 524,851.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,617.76 : 969,612.69 = 380,326.86 : x
  2. Step 2: Convert to fraction form
    702,617.76/969,612.69 = 380,326.86/x
  3. Step 3: Cross multiply
    702,617.76x = 969,612.69 × 380,326.86
  4. Step 4: Simplify right side
    702,617.76x = 368,769,749,803.85
  5. Step 5: Solve for x
    x = 368,769,749,803.85/702,617.76
  6. Step 6: Final answer
    x = 524,851.16

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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.