Home / 763,289.81-1,053,358.94-419,159.69

Finding the Fourth Proportional to 763,289.81, 1,053,358.94 and 419,159.69

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Solution

The fourth proportional to 763,289.81, 1,053,358.94 and 419,159.69 is: 578,450.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,289.81 : 1,053,358.94 = 419,159.69 : x
  2. Step 2: Convert to fraction form
    763,289.81/1,053,358.94 = 419,159.69/x
  3. Step 3: Cross multiply
    763,289.81x = 1,053,358.94 × 419,159.69
  4. Step 4: Simplify right side
    763,289.81x = 441,525,604,653.33
  5. Step 5: Solve for x
    x = 441,525,604,653.33/763,289.81
  6. Step 6: Final answer
    x = 578,450.80

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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.