Home / 525,678.58-788,517.79-126,319.35

Finding the Fourth Proportional to 525,678.58, 788,517.79 and 126,319.35

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Solution

The fourth proportional to 525,678.58, 788,517.79 and 126,319.35 is: 189,479.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,678.58 : 788,517.79 = 126,319.35 : x
  2. Step 2: Convert to fraction form
    525,678.58/788,517.79 = 126,319.35/x
  3. Step 3: Cross multiply
    525,678.58x = 788,517.79 × 126,319.35
  4. Step 4: Simplify right side
    525,678.58x = 99,605,054,380.44
  5. Step 5: Solve for x
    x = 99,605,054,380.44/525,678.58
  6. Step 6: Final answer
    x = 189,479.01

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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.