Home / 525,110.40-786,628.80-314,121.60

Finding the Fourth Proportional to 525,110.40, 786,628.80 and 314,121.60

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Solution

The fourth proportional to 525,110.40, 786,628.80 and 314,121.60 is: 470,562.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,110.40 : 786,628.80 = 314,121.60 : x
  2. Step 2: Convert to fraction form
    525,110.40/786,628.80 = 314,121.60/x
  3. Step 3: Cross multiply
    525,110.40x = 786,628.80 × 314,121.60
  4. Step 4: Simplify right side
    525,110.40x = 247,097,097,262.08
  5. Step 5: Solve for x
    x = 247,097,097,262.08/525,110.40
  6. Step 6: Final answer
    x = 470,562.19

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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.