Home / 783,090.98-1,080,342.79-477,055.70

Finding the Fourth Proportional to 783,090.98, 1,080,342.79 and 477,055.70

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Solution

The fourth proportional to 783,090.98, 1,080,342.79 and 477,055.70 is: 658,140.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,090.98 : 1,080,342.79 = 477,055.70 : x
  2. Step 2: Convert to fraction form
    783,090.98/1,080,342.79 = 477,055.70/x
  3. Step 3: Cross multiply
    783,090.98x = 1,080,342.79 × 477,055.70
  4. Step 4: Simplify right side
    783,090.98x = 515,383,685,923.40
  5. Step 5: Solve for x
    x = 515,383,685,923.40/783,090.98
  6. Step 6: Final answer
    x = 658,140.24

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Double scale
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1.5x scale

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.