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Finding the Fourth Proportional to 480,647.98, 721,405.32 and 256,195.36

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Solution

The fourth proportional to 480,647.98, 721,405.32 and 256,195.36 is: 384,524.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,647.98 : 721,405.32 = 256,195.36 : x
  2. Step 2: Convert to fraction form
    480,647.98/721,405.32 = 256,195.36/x
  3. Step 3: Cross multiply
    480,647.98x = 721,405.32 × 256,195.36
  4. Step 4: Simplify right side
    480,647.98x = 184,820,695,663.32
  5. Step 5: Solve for x
    x = 184,820,695,663.32/480,647.98
  6. Step 6: Final answer
    x = 384,524.02

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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.