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Finding the Fourth Proportional to 608,410.96, 838,728.84 and 417,121.36

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Solution

The fourth proportional to 608,410.96, 838,728.84 and 417,121.36 is: 575,025.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,410.96 : 838,728.84 = 417,121.36 : x
  2. Step 2: Convert to fraction form
    608,410.96/838,728.84 = 417,121.36/x
  3. Step 3: Cross multiply
    608,410.96x = 838,728.84 × 417,121.36
  4. Step 4: Simplify right side
    608,410.96x = 349,851,714,412.02
  5. Step 5: Solve for x
    x = 349,851,714,412.02/608,410.96
  6. Step 6: Final answer
    x = 575,025.33

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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.