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Finding the Fourth Proportional to 646,406.68, 969,285.48 and 376,622.16

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Solution

The fourth proportional to 646,406.68, 969,285.48 and 376,622.16 is: 564,744.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,406.68 : 969,285.48 = 376,622.16 : x
  2. Step 2: Convert to fraction form
    646,406.68/969,285.48 = 376,622.16/x
  3. Step 3: Cross multiply
    646,406.68x = 969,285.48 × 376,622.16
  4. Step 4: Simplify right side
    646,406.68x = 365,054,391,134.24
  5. Step 5: Solve for x
    x = 365,054,391,134.24/646,406.68
  6. Step 6: Final answer
    x = 564,744.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.