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Finding the Fourth Proportional to 472,010.36, 651,203.43 and 308,760.05

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Solution

The fourth proportional to 472,010.36, 651,203.43 and 308,760.05 is: 425,977.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,010.36 : 651,203.43 = 308,760.05 : x
  2. Step 2: Convert to fraction form
    472,010.36/651,203.43 = 308,760.05/x
  3. Step 3: Cross multiply
    472,010.36x = 651,203.43 × 308,760.05
  4. Step 4: Simplify right side
    472,010.36x = 201,065,600,350.95
  5. Step 5: Solve for x
    x = 201,065,600,350.95/472,010.36
  6. Step 6: Final answer
    x = 425,977.10

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1.5x scale

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.