Home / 1,283,789.86-1,925,872.58-385,302.67

Finding the Fourth Proportional to 1,283,789.86, 1,925,872.58 and 385,302.67

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Solution

The fourth proportional to 1,283,789.86, 1,925,872.58 and 385,302.67 is: 578,010.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,283,789.86 : 1,925,872.58 = 385,302.67 : x
  2. Step 2: Convert to fraction form
    1,283,789.86/1,925,872.58 = 385,302.67/x
  3. Step 3: Cross multiply
    1,283,789.86x = 1,925,872.58 × 385,302.67
  4. Step 4: Simplify right side
    1,283,789.86x = 742,043,847,153.79
  5. Step 5: Solve for x
    x = 742,043,847,153.79/1,283,789.86
  6. Step 6: Final answer
    x = 578,010.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.