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Finding the Fourth Proportional to 560,902.49, 774,045 and 306,253.67

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Solution

The fourth proportional to 560,902.49, 774,045 and 306,253.67 is: 422,629.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,902.49 : 774,045 = 306,253.67 : x
  2. Step 2: Convert to fraction form
    560,902.49/774,045 = 306,253.67/x
  3. Step 3: Cross multiply
    560,902.49x = 774,045 × 306,253.67
  4. Step 4: Simplify right side
    560,902.49x = 237,054,121,995.15
  5. Step 5: Solve for x
    x = 237,054,121,995.15/560,902.49
  6. Step 6: Final answer
    x = 422,629.83

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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.