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Finding the Fourth Proportional to 525,007.60, 786,636.60 and 493,514.80

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Solution

The fourth proportional to 525,007.60, 786,636.60 and 493,514.80 is: 739,449.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,007.60 : 786,636.60 = 493,514.80 : x
  2. Step 2: Convert to fraction form
    525,007.60/786,636.60 = 493,514.80/x
  3. Step 3: Cross multiply
    525,007.60x = 786,636.60 × 493,514.80
  4. Step 4: Simplify right side
    525,007.60x = 388,216,804,321.68
  5. Step 5: Solve for x
    x = 388,216,804,321.68/525,007.60
  6. Step 6: Final answer
    x = 739,449.88

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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.