Home / 1,280,560.33-1,920,578.01-470,665.63

Finding the Fourth Proportional to 1,280,560.33, 1,920,578.01 and 470,665.63

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Solution

The fourth proportional to 1,280,560.33, 1,920,578.01 and 470,665.63 is: 705,901.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,560.33 : 1,920,578.01 = 470,665.63 : x
  2. Step 2: Convert to fraction form
    1,280,560.33/1,920,578.01 = 470,665.63/x
  3. Step 3: Cross multiply
    1,280,560.33x = 1,920,578.01 × 470,665.63
  4. Step 4: Simplify right side
    1,280,560.33x = 903,950,059,040.80
  5. Step 5: Solve for x
    x = 903,950,059,040.80/1,280,560.33
  6. Step 6: Final answer
    x = 705,901.97

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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.