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Finding the Fourth Proportional to 478,410.08, 660,160.47 and 274,477.80

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Solution

The fourth proportional to 478,410.08, 660,160.47 and 274,477.80 is: 378,753.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,410.08 : 660,160.47 = 274,477.80 : x
  2. Step 2: Convert to fraction form
    478,410.08/660,160.47 = 274,477.80/x
  3. Step 3: Cross multiply
    478,410.08x = 660,160.47 × 274,477.80
  4. Step 4: Simplify right side
    478,410.08x = 181,199,393,452.57
  5. Step 5: Solve for x
    x = 181,199,393,452.57/478,410.08
  6. Step 6: Final answer
    x = 378,753.29

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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.