Home / 763,769.49-1,054,020.45-419,627.69

Finding the Fourth Proportional to 763,769.49, 1,054,020.45 and 419,627.69

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Solution

The fourth proportional to 763,769.49, 1,054,020.45 and 419,627.69 is: 579,096.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,769.49 : 1,054,020.45 = 419,627.69 : x
  2. Step 2: Convert to fraction form
    763,769.49/1,054,020.45 = 419,627.69/x
  3. Step 3: Cross multiply
    763,769.49x = 1,054,020.45 × 419,627.69
  4. Step 4: Simplify right side
    763,769.49x = 442,296,161,376.16
  5. Step 5: Solve for x
    x = 442,296,161,376.16/763,769.49
  6. Step 6: Final answer
    x = 579,096.40

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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.