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Finding the Fourth Proportional to 480,648.98, 721,406.82 and 256,196.36

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Solution

The fourth proportional to 480,648.98, 721,406.82 and 256,196.36 is: 384,525.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,648.98 : 721,406.82 = 256,196.36 : x
  2. Step 2: Convert to fraction form
    480,648.98/721,406.82 = 256,196.36/x
  3. Step 3: Cross multiply
    480,648.98x = 721,406.82 × 256,196.36
  4. Step 4: Simplify right side
    480,648.98x = 184,821,801,363.18
  5. Step 5: Solve for x
    x = 184,821,801,363.18/480,648.98
  6. Step 6: Final answer
    x = 384,525.52

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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.