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Finding the Fourth Proportional to 780,202, 1,076,373.96 and 453,460.72

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Solution

The fourth proportional to 780,202, 1,076,373.96 and 453,460.72 is: 625,598.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,202 : 1,076,373.96 = 453,460.72 : x
  2. Step 2: Convert to fraction form
    780,202/1,076,373.96 = 453,460.72/x
  3. Step 3: Cross multiply
    780,202x = 1,076,373.96 × 453,460.72
  4. Step 4: Simplify right side
    780,202x = 488,093,310,890.85
  5. Step 5: Solve for x
    x = 488,093,310,890.85/780,202
  6. Step 6: Final answer
    x = 625,598.64

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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.