Home / 830,688.90-1,245,968.55-325,151.70

Finding the Fourth Proportional to 830,688.90, 1,245,968.55 and 325,151.70

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Solution

The fourth proportional to 830,688.90, 1,245,968.55 and 325,151.70 is: 487,702.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,688.90 : 1,245,968.55 = 325,151.70 : x
  2. Step 2: Convert to fraction form
    830,688.90/1,245,968.55 = 325,151.70/x
  3. Step 3: Cross multiply
    830,688.90x = 1,245,968.55 × 325,151.70
  4. Step 4: Simplify right side
    830,688.90x = 405,128,792,179.04
  5. Step 5: Solve for x
    x = 405,128,792,179.04/830,688.90
  6. Step 6: Final answer
    x = 487,702.19

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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.