Home / 678,063.83-1,017,111.08-172,622.92

Finding the Fourth Proportional to 678,063.83, 1,017,111.08 and 172,622.92

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Solution

The fourth proportional to 678,063.83, 1,017,111.08 and 172,622.92 is: 258,938.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,063.83 : 1,017,111.08 = 172,622.92 : x
  2. Step 2: Convert to fraction form
    678,063.83/1,017,111.08 = 172,622.92/x
  3. Step 3: Cross multiply
    678,063.83x = 1,017,111.08 × 172,622.92
  4. Step 4: Simplify right side
    678,063.83x = 175,576,682,482.73
  5. Step 5: Solve for x
    x = 175,576,682,482.73/678,063.83
  6. Step 6: Final answer
    x = 258,938.28

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1.5x scale

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.