Home / 760,828.83-1,049,930.82-421,289.79

Finding the Fourth Proportional to 760,828.83, 1,049,930.82 and 421,289.79

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Solution

The fourth proportional to 760,828.83, 1,049,930.82 and 421,289.79 is: 581,372.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,828.83 : 1,049,930.82 = 421,289.79 : x
  2. Step 2: Convert to fraction form
    760,828.83/1,049,930.82 = 421,289.79/x
  3. Step 3: Cross multiply
    760,828.83x = 1,049,930.82 × 421,289.79
  4. Step 4: Simplify right side
    760,828.83x = 442,325,134,672.33
  5. Step 5: Solve for x
    x = 442,325,134,672.33/760,828.83
  6. Step 6: Final answer
    x = 581,372.73

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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.