Home / 705,328.80-1,058,090.40-255,940.80

Finding the Fourth Proportional to 705,328.80, 1,058,090.40 and 255,940.80

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Solution

The fourth proportional to 705,328.80, 1,058,090.40 and 255,940.80 is: 383,946.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,328.80 : 1,058,090.40 = 255,940.80 : x
  2. Step 2: Convert to fraction form
    705,328.80/1,058,090.40 = 255,940.80/x
  3. Step 3: Cross multiply
    705,328.80x = 1,058,090.40 × 255,940.80
  4. Step 4: Simplify right side
    705,328.80x = 270,808,503,448.32
  5. Step 5: Solve for x
    x = 270,808,503,448.32/705,328.80
  6. Step 6: Final answer
    x = 383,946.47

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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.