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Finding the Fourth Proportional to 501,646.08, 692,256 and 275,285.76

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Solution

The fourth proportional to 501,646.08, 692,256 and 275,285.76 is: 379,885.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,646.08 : 692,256 = 275,285.76 : x
  2. Step 2: Convert to fraction form
    501,646.08/692,256 = 275,285.76/x
  3. Step 3: Cross multiply
    501,646.08x = 692,256 × 275,285.76
  4. Step 4: Simplify right side
    501,646.08x = 190,568,219,074.56
  5. Step 5: Solve for x
    x = 190,568,219,074.56/501,646.08
  6. Step 6: Final answer
    x = 379,885.79

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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.