Home / 789,913.62-1,090,075.86-427,336.02

Finding the Fourth Proportional to 789,913.62, 1,090,075.86 and 427,336.02

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Solution

The fourth proportional to 789,913.62, 1,090,075.86 and 427,336.02 is: 589,721.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,913.62 : 1,090,075.86 = 427,336.02 : x
  2. Step 2: Convert to fraction form
    789,913.62/1,090,075.86 = 427,336.02/x
  3. Step 3: Cross multiply
    789,913.62x = 1,090,075.86 × 427,336.02
  4. Step 4: Simplify right side
    789,913.62x = 465,828,679,510.48
  5. Step 5: Solve for x
    x = 465,828,679,510.48/789,913.62
  6. Step 6: Final answer
    x = 589,721.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.