Home / 830,982.78-1,245,336.93-451,407.06

Finding the Fourth Proportional to 830,982.78, 1,245,336.93 and 451,407.06

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Solution

The fourth proportional to 830,982.78, 1,245,336.93 and 451,407.06 is: 676,492.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,982.78 : 1,245,336.93 = 451,407.06 : x
  2. Step 2: Convert to fraction form
    830,982.78/1,245,336.93 = 451,407.06/x
  3. Step 3: Cross multiply
    830,982.78x = 1,245,336.93 × 451,407.06
  4. Step 4: Simplify right side
    830,982.78x = 562,153,882,280.73
  5. Step 5: Solve for x
    x = 562,153,882,280.73/830,982.78
  6. Step 6: Final answer
    x = 676,492.82

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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.