Home / 738,139.80-1,106,618.40-679,090.80

Finding the Fourth Proportional to 738,139.80, 1,106,618.40 and 679,090.80

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Solution

The fourth proportional to 738,139.80, 1,106,618.40 and 679,090.80 is: 1,018,092.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,139.80 : 1,106,618.40 = 679,090.80 : x
  2. Step 2: Convert to fraction form
    738,139.80/1,106,618.40 = 679,090.80/x
  3. Step 3: Cross multiply
    738,139.80x = 1,106,618.40 × 679,090.80
  4. Step 4: Simplify right side
    738,139.80x = 751,494,374,550.72
  5. Step 5: Solve for x
    x = 751,494,374,550.72/738,139.80
  6. Step 6: Final answer
    x = 1,018,092.20

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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.