Home / 1,877,518.73-2,815,033.78-679,285.12

Finding the Fourth Proportional to 1,877,518.73, 2,815,033.78 and 679,285.12

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Solution

The fourth proportional to 1,877,518.73, 2,815,033.78 and 679,285.12 is: 1,018,477.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,877,518.73 : 2,815,033.78 = 679,285.12 : x
  2. Step 2: Convert to fraction form
    1,877,518.73/2,815,033.78 = 679,285.12/x
  3. Step 3: Cross multiply
    1,877,518.73x = 2,815,033.78 × 679,285.12
  4. Step 4: Simplify right side
    1,877,518.73x = 1,912,210,550,315.56
  5. Step 5: Solve for x
    x = 1,912,210,550,315.56/1,877,518.73
  6. Step 6: Final answer
    x = 1,018,477.49

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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.