Home / 2,688,128.40-4,032,192.60-1,195,136.40

Finding the Fourth Proportional to 2,688,128.40, 4,032,192.60 and 1,195,136.40

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Solution

The fourth proportional to 2,688,128.40, 4,032,192.60 and 1,195,136.40 is: 1,792,704.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688,128.40 : 4,032,192.60 = 1,195,136.40 : x
  2. Step 2: Convert to fraction form
    2,688,128.40/4,032,192.60 = 1,195,136.40/x
  3. Step 3: Cross multiply
    2,688,128.40x = 4,032,192.60 × 1,195,136.40
  4. Step 4: Simplify right side
    2,688,128.40x = 4,819,020,148,070.64
  5. Step 5: Solve for x
    x = 4,819,020,148,070.64/2,688,128.40
  6. Step 6: Final answer
    x = 1,792,704.60

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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.