Home / 780,288.36-1,076,841.72-458,091.96

Finding the Fourth Proportional to 780,288.36, 1,076,841.72 and 458,091.96

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Solution

The fourth proportional to 780,288.36, 1,076,841.72 and 458,091.96 is: 632,192.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,288.36 : 1,076,841.72 = 458,091.96 : x
  2. Step 2: Convert to fraction form
    780,288.36/1,076,841.72 = 458,091.96/x
  3. Step 3: Cross multiply
    780,288.36x = 1,076,841.72 × 458,091.96
  4. Step 4: Simplify right side
    780,288.36x = 493,292,534,124.57
  5. Step 5: Solve for x
    x = 493,292,534,124.57/780,288.36
  6. Step 6: Final answer
    x = 632,192.61

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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.