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Finding the Fourth Proportional to 525,775.52, 788,662.91 and 126,416.16

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Solution

The fourth proportional to 525,775.52, 788,662.91 and 126,416.16 is: 189,624.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,775.52 : 788,662.91 = 126,416.16 : x
  2. Step 2: Convert to fraction form
    525,775.52/788,662.91 = 126,416.16/x
  3. Step 3: Cross multiply
    525,775.52x = 788,662.91 × 126,416.16
  4. Step 4: Simplify right side
    525,775.52x = 99,699,736,932.67
  5. Step 5: Solve for x
    x = 99,699,736,932.67/525,775.52
  6. Step 6: Final answer
    x = 189,624.15

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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.