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Finding the Fourth Proportional to 702,621.19, 969,617.82 and 380,330.29

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Solution

The fourth proportional to 702,621.19, 969,617.82 and 380,330.29 is: 524,856.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,621.19 : 969,617.82 = 380,330.29 : x
  2. Step 2: Convert to fraction form
    702,621.19/969,617.82 = 380,330.29/x
  3. Step 3: Cross multiply
    702,621.19x = 969,617.82 × 380,330.29
  4. Step 4: Simplify right side
    702,621.19x = 368,775,026,669.77
  5. Step 5: Solve for x
    x = 368,775,026,669.77/702,621.19
  6. Step 6: Final answer
    x = 524,856.11

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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.