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Finding the Fourth Proportional to 423,482.02, 634,662.32 and 310,633.84

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Solution

The fourth proportional to 423,482.02, 634,662.32 and 310,633.84 is: 465,539.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,482.02 : 634,662.32 = 310,633.84 : x
  2. Step 2: Convert to fraction form
    423,482.02/634,662.32 = 310,633.84/x
  3. Step 3: Cross multiply
    423,482.02x = 634,662.32 × 310,633.84
  4. Step 4: Simplify right side
    423,482.02x = 197,147,593,564.91
  5. Step 5: Solve for x
    x = 197,147,593,564.91/423,482.02
  6. Step 6: Final answer
    x = 465,539.47

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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.