Home / 780,392.50-1,076,941.27-458,102.60

Finding the Fourth Proportional to 780,392.50, 1,076,941.27 and 458,102.60

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Solution

The fourth proportional to 780,392.50, 1,076,941.27 and 458,102.60 is: 632,181.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,392.50 : 1,076,941.27 = 458,102.60 : x
  2. Step 2: Convert to fraction form
    780,392.50/1,076,941.27 = 458,102.60/x
  3. Step 3: Cross multiply
    780,392.50x = 1,076,941.27 × 458,102.60
  4. Step 4: Simplify right side
    780,392.50x = 493,349,591,323.60
  5. Step 5: Solve for x
    x = 493,349,591,323.60/780,392.50
  6. Step 6: Final answer
    x = 632,181.36

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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.