Home / 830,521.20-1,245,781.80-451,623.45

Finding the Fourth Proportional to 830,521.20, 1,245,781.80 and 451,623.45

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Solution

The fourth proportional to 830,521.20, 1,245,781.80 and 451,623.45 is: 677,435.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,521.20 : 1,245,781.80 = 451,623.45 : x
  2. Step 2: Convert to fraction form
    830,521.20/1,245,781.80 = 451,623.45/x
  3. Step 3: Cross multiply
    830,521.20x = 1,245,781.80 × 451,623.45
  4. Step 4: Simplify right side
    830,521.20x = 562,624,274,463.21
  5. Step 5: Solve for x
    x = 562,624,274,463.21/830,521.20
  6. Step 6: Final answer
    x = 677,435.18

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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.