Home / 551,211.75-760,693.53-306,215.06

Finding the Fourth Proportional to 551,211.75, 760,693.53 and 306,215.06

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Solution

The fourth proportional to 551,211.75, 760,693.53 and 306,215.06 is: 422,588.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,211.75 : 760,693.53 = 306,215.06 : x
  2. Step 2: Convert to fraction form
    551,211.75/760,693.53 = 306,215.06/x
  3. Step 3: Cross multiply
    551,211.75x = 760,693.53 × 306,215.06
  4. Step 4: Simplify right side
    551,211.75x = 232,935,811,127.09
  5. Step 5: Solve for x
    x = 232,935,811,127.09/551,211.75
  6. Step 6: Final answer
    x = 422,588.62

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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.