Home / 1,682,564-2,523,851.40-420,391.76

Finding the Fourth Proportional to 1,682,564, 2,523,851.40 and 420,391.76

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Solution

The fourth proportional to 1,682,564, 2,523,851.40 and 420,391.76 is: 630,588.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,682,564 : 2,523,851.40 = 420,391.76 : x
  2. Step 2: Convert to fraction form
    1,682,564/2,523,851.40 = 420,391.76/x
  3. Step 3: Cross multiply
    1,682,564x = 2,523,851.40 × 420,391.76
  4. Step 4: Simplify right side
    1,682,564x = 1,061,006,332,024.46
  5. Step 5: Solve for x
    x = 1,061,006,332,024.46/1,682,564
  6. Step 6: Final answer
    x = 630,588.99

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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.