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Finding the Fourth Proportional to 435,480.60, 653,220.90 and 276,048.30

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Solution

The fourth proportional to 435,480.60, 653,220.90 and 276,048.30 is: 414,072.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,480.60 : 653,220.90 = 276,048.30 : x
  2. Step 2: Convert to fraction form
    435,480.60/653,220.90 = 276,048.30/x
  3. Step 3: Cross multiply
    435,480.60x = 653,220.90 × 276,048.30
  4. Step 4: Simplify right side
    435,480.60x = 180,320,518,969.47
  5. Step 5: Solve for x
    x = 180,320,518,969.47/435,480.60
  6. Step 6: Final answer
    x = 414,072.45

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1.5x scale

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.