Home / 780,419.64-1,076,957.10-458,124.60

Finding the Fourth Proportional to 780,419.64, 1,076,957.10 and 458,124.60

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Solution

The fourth proportional to 780,419.64, 1,076,957.10 and 458,124.60 is: 632,199.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,419.64 : 1,076,957.10 = 458,124.60 : x
  2. Step 2: Convert to fraction form
    780,419.64/1,076,957.10 = 458,124.60/x
  3. Step 3: Cross multiply
    780,419.64x = 1,076,957.10 × 458,124.60
  4. Step 4: Simplify right side
    780,419.64x = 493,380,540,654.66
  5. Step 5: Solve for x
    x = 493,380,540,654.66/780,419.64
  6. Step 6: Final answer
    x = 632,199.03

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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.