Home / 830,012.80-1,245,019.20-732,035.20

Finding the Fourth Proportional to 830,012.80, 1,245,019.20 and 732,035.20

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Solution

The fourth proportional to 830,012.80, 1,245,019.20 and 732,035.20 is: 1,098,052.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,012.80 : 1,245,019.20 = 732,035.20 : x
  2. Step 2: Convert to fraction form
    830,012.80/1,245,019.20 = 732,035.20/x
  3. Step 3: Cross multiply
    830,012.80x = 1,245,019.20 × 732,035.20
  4. Step 4: Simplify right side
    830,012.80x = 911,397,879,075.84
  5. Step 5: Solve for x
    x = 911,397,879,075.84/830,012.80
  6. Step 6: Final answer
    x = 1,098,052.80

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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.