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Finding the Fourth Proportional to 780,201, 1,076,372.58 and 453,459.72

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Solution

The fourth proportional to 780,201, 1,076,372.58 and 453,459.72 is: 625,597.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,201 : 1,076,372.58 = 453,459.72 : x
  2. Step 2: Convert to fraction form
    780,201/1,076,372.58 = 453,459.72/x
  3. Step 3: Cross multiply
    780,201x = 1,076,372.58 × 453,459.72
  4. Step 4: Simplify right side
    780,201x = 488,091,608,742.48
  5. Step 5: Solve for x
    x = 488,091,608,742.48/780,201
  6. Step 6: Final answer
    x = 625,597.26

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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.