Home / 763,622.84-1,145,427.75-308,207.09

Finding the Fourth Proportional to 763,622.84, 1,145,427.75 and 308,207.09

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Solution

The fourth proportional to 763,622.84, 1,145,427.75 and 308,207.09 is: 462,308.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,622.84 : 1,145,427.75 = 308,207.09 : x
  2. Step 2: Convert to fraction form
    763,622.84/1,145,427.75 = 308,207.09/x
  3. Step 3: Cross multiply
    763,622.84x = 1,145,427.75 × 308,207.09
  4. Step 4: Simplify right side
    763,622.84x = 353,028,956,496.32
  5. Step 5: Solve for x
    x = 353,028,956,496.32/763,622.84
  6. Step 6: Final answer
    x = 462,308.01

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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.