Home / 3,829,075.20-5,743,612.80-3,120,487.20

Finding the Fourth Proportional to 3,829,075.20, 5,743,612.80 and 3,120,487.20

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Solution

The fourth proportional to 3,829,075.20, 5,743,612.80 and 3,120,487.20 is: 4,680,730.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,829,075.20 : 5,743,612.80 = 3,120,487.20 : x
  2. Step 2: Convert to fraction form
    3,829,075.20/5,743,612.80 = 3,120,487.20/x
  3. Step 3: Cross multiply
    3,829,075.20x = 5,743,612.80 × 3,120,487.20
  4. Step 4: Simplify right side
    3,829,075.20x = 17,922,870,224,156.16
  5. Step 5: Solve for x
    x = 17,922,870,224,156.16/3,829,075.20
  6. Step 6: Final answer
    x = 4,680,730.80

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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.