Home / 830,528.20-1,245,792.30-451,630.45

Finding the Fourth Proportional to 830,528.20, 1,245,792.30 and 451,630.45

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Solution

The fourth proportional to 830,528.20, 1,245,792.30 and 451,630.45 is: 677,445.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,528.20 : 1,245,792.30 = 451,630.45 : x
  2. Step 2: Convert to fraction form
    830,528.20/1,245,792.30 = 451,630.45/x
  3. Step 3: Cross multiply
    830,528.20x = 1,245,792.30 × 451,630.45
  4. Step 4: Simplify right side
    830,528.20x = 562,637,737,055.54
  5. Step 5: Solve for x
    x = 562,637,737,055.54/830,528.20
  6. Step 6: Final answer
    x = 677,445.68

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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.