Home / 763,308.66-1,144,788.09-455,647.58

Finding the Fourth Proportional to 763,308.66, 1,144,788.09 and 455,647.58

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Solution

The fourth proportional to 763,308.66, 1,144,788.09 and 455,647.58 is: 683,366.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,308.66 : 1,144,788.09 = 455,647.58 : x
  2. Step 2: Convert to fraction form
    763,308.66/1,144,788.09 = 455,647.58/x
  3. Step 3: Cross multiply
    763,308.66x = 1,144,788.09 × 455,647.58
  4. Step 4: Simplify right side
    763,308.66x = 521,619,919,681.66
  5. Step 5: Solve for x
    x = 521,619,919,681.66/763,308.66
  6. Step 6: Final answer
    x = 683,366.96

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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.