Home / 501,769.90-693,017.13-330,453.65

Finding the Fourth Proportional to 501,769.90, 693,017.13 and 330,453.65

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Solution

The fourth proportional to 501,769.90, 693,017.13 and 330,453.65 is: 456,404.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,769.90 : 693,017.13 = 330,453.65 : x
  2. Step 2: Convert to fraction form
    501,769.90/693,017.13 = 330,453.65/x
  3. Step 3: Cross multiply
    501,769.90x = 693,017.13 × 330,453.65
  4. Step 4: Simplify right side
    501,769.90x = 229,010,039,749.56
  5. Step 5: Solve for x
    x = 229,010,039,749.56/501,769.90
  6. Step 6: Final answer
    x = 456,404.50

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1.5x scale

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.