Home / 1,379,058.32-1,903,273.80-775,442

Finding the Fourth Proportional to 1,379,058.32, 1,903,273.80 and 775,442

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Solution

The fourth proportional to 1,379,058.32, 1,903,273.80 and 775,442 is: 1,070,207.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,058.32 : 1,903,273.80 = 775,442 : x
  2. Step 2: Convert to fraction form
    1,379,058.32/1,903,273.80 = 775,442/x
  3. Step 3: Cross multiply
    1,379,058.32x = 1,903,273.80 × 775,442
  4. Step 4: Simplify right side
    1,379,058.32x = 1,475,878,442,019.60
  5. Step 5: Solve for x
    x = 1,475,878,442,019.60/1,379,058.32
  6. Step 6: Final answer
    x = 1,070,207.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.