Home / 525,680.94-788,521.33-126,321.72

Finding the Fourth Proportional to 525,680.94, 788,521.33 and 126,321.72

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Solution

The fourth proportional to 525,680.94, 788,521.33 and 126,321.72 is: 189,482.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,680.94 : 788,521.33 = 126,321.72 : x
  2. Step 2: Convert to fraction form
    525,680.94/788,521.33 = 126,321.72/x
  3. Step 3: Cross multiply
    525,680.94x = 788,521.33 × 126,321.72
  4. Step 4: Simplify right side
    525,680.94x = 99,607,370,662.29
  5. Step 5: Solve for x
    x = 99,607,370,662.29/525,680.94
  6. Step 6: Final answer
    x = 189,482.56

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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.