Home / 738,140.80-1,106,619.90-679,091.80

Finding the Fourth Proportional to 738,140.80, 1,106,619.90 and 679,091.80

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Solution

The fourth proportional to 738,140.80, 1,106,619.90 and 679,091.80 is: 1,018,093.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,140.80 : 1,106,619.90 = 679,091.80 : x
  2. Step 2: Convert to fraction form
    738,140.80/1,106,619.90 = 679,091.80/x
  3. Step 3: Cross multiply
    738,140.80x = 1,106,619.90 × 679,091.80
  4. Step 4: Simplify right side
    738,140.80x = 751,496,499,806.82
  5. Step 5: Solve for x
    x = 751,496,499,806.82/738,140.80
  6. Step 6: Final answer
    x = 1,018,093.70

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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.