Home / 678,303.75-936,062.82-423,802.56

Finding the Fourth Proportional to 678,303.75, 936,062.82 and 423,802.56

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Solution

The fourth proportional to 678,303.75, 936,062.82 and 423,802.56 is: 584,849.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,303.75 : 936,062.82 = 423,802.56 : x
  2. Step 2: Convert to fraction form
    678,303.75/936,062.82 = 423,802.56/x
  3. Step 3: Cross multiply
    678,303.75x = 936,062.82 × 423,802.56
  4. Step 4: Simplify right side
    678,303.75x = 396,705,819,436.82
  5. Step 5: Solve for x
    x = 396,705,819,436.82/678,303.75
  6. Step 6: Final answer
    x = 584,849.81

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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.