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Finding the Fourth Proportional to 638,448.64, 957,955.07 and 334,770.28

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Solution

The fourth proportional to 638,448.64, 957,955.07 and 334,770.28 is: 502,303.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,448.64 : 957,955.07 = 334,770.28 : x
  2. Step 2: Convert to fraction form
    638,448.64/957,955.07 = 334,770.28/x
  3. Step 3: Cross multiply
    638,448.64x = 957,955.07 × 334,770.28
  4. Step 4: Simplify right side
    638,448.64x = 320,694,887,011.32
  5. Step 5: Solve for x
    x = 320,694,887,011.32/638,448.64
  6. Step 6: Final answer
    x = 502,303.34

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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.