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Finding the Fourth Proportional to 434,912.40, 652,368.60 and 275,480.10

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Solution

The fourth proportional to 434,912.40, 652,368.60 and 275,480.10 is: 413,220.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,912.40 : 652,368.60 = 275,480.10 : x
  2. Step 2: Convert to fraction form
    434,912.40/652,368.60 = 275,480.10/x
  3. Step 3: Cross multiply
    434,912.40x = 652,368.60 × 275,480.10
  4. Step 4: Simplify right side
    434,912.40x = 179,714,567,164.86
  5. Step 5: Solve for x
    x = 179,714,567,164.86/434,912.40
  6. Step 6: Final answer
    x = 413,220.15

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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.