Home / 993,821.80-1,490,732.70-678,893.80

Finding the Fourth Proportional to 993,821.80, 1,490,732.70 and 678,893.80

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Solution

The fourth proportional to 993,821.80, 1,490,732.70 and 678,893.80 is: 1,018,340.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,821.80 : 1,490,732.70 = 678,893.80 : x
  2. Step 2: Convert to fraction form
    993,821.80/1,490,732.70 = 678,893.80/x
  3. Step 3: Cross multiply
    993,821.80x = 1,490,732.70 × 678,893.80
  4. Step 4: Simplify right side
    993,821.80x = 1,012,049,187,487.26
  5. Step 5: Solve for x
    x = 1,012,049,187,487.26/993,821.80
  6. Step 6: Final answer
    x = 1,018,340.70

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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.