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Finding the Fourth Proportional to 560,964.64, 774,131.13 and 306,316.06

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Solution

The fourth proportional to 560,964.64, 774,131.13 and 306,316.06 is: 422,716.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,964.64 : 774,131.13 = 306,316.06 : x
  2. Step 2: Convert to fraction form
    560,964.64/774,131.13 = 306,316.06/x
  3. Step 3: Cross multiply
    560,964.64x = 774,131.13 × 306,316.06
  4. Step 4: Simplify right side
    560,964.64x = 237,128,797,664.95
  5. Step 5: Solve for x
    x = 237,128,797,664.95/560,964.64
  6. Step 6: Final answer
    x = 422,716.12

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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.