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Finding the Fourth Proportional to 702,118.72, 968,921.70 and 379,828.72

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Solution

The fourth proportional to 702,118.72, 968,921.70 and 379,828.72 is: 524,162.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,118.72 : 968,921.70 = 379,828.72 : x
  2. Step 2: Convert to fraction form
    702,118.72/968,921.70 = 379,828.72/x
  3. Step 3: Cross multiply
    702,118.72x = 968,921.70 × 379,828.72
  4. Step 4: Simplify right side
    702,118.72x = 368,024,289,091.22
  5. Step 5: Solve for x
    x = 368,024,289,091.22/702,118.72
  6. Step 6: Final answer
    x = 524,162.48

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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.