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Finding the Fourth Proportional to 560,944.64, 774,104.58 and 306,290.40

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Solution

The fourth proportional to 560,944.64, 774,104.58 and 306,290.40 is: 422,681.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,944.64 : 774,104.58 = 306,290.40 : x
  2. Step 2: Convert to fraction form
    560,944.64/774,104.58 = 306,290.40/x
  3. Step 3: Cross multiply
    560,944.64x = 774,104.58 × 306,290.40
  4. Step 4: Simplify right side
    560,944.64x = 237,100,801,450.03
  5. Step 5: Solve for x
    x = 237,100,801,450.03/560,944.64
  6. Step 6: Final answer
    x = 422,681.29

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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.