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Finding the Fourth Proportional to 434,520.40, 651,780.60 and 245,563.60

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Solution

The fourth proportional to 434,520.40, 651,780.60 and 245,563.60 is: 368,345.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,520.40 : 651,780.60 = 245,563.60 : x
  2. Step 2: Convert to fraction form
    434,520.40/651,780.60 = 245,563.60/x
  3. Step 3: Cross multiply
    434,520.40x = 651,780.60 × 245,563.60
  4. Step 4: Simplify right side
    434,520.40x = 160,053,590,546.16
  5. Step 5: Solve for x
    x = 160,053,590,546.16/434,520.40
  6. Step 6: Final answer
    x = 368,345.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.