Home / 1,243,166.70-1,863,000.45-920,802.90

Finding the Fourth Proportional to 1,243,166.70, 1,863,000.45 and 920,802.90

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Solution

The fourth proportional to 1,243,166.70, 1,863,000.45 and 920,802.90 is: 1,379,908.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,166.70 : 1,863,000.45 = 920,802.90 : x
  2. Step 2: Convert to fraction form
    1,243,166.70/1,863,000.45 = 920,802.90/x
  3. Step 3: Cross multiply
    1,243,166.70x = 1,863,000.45 × 920,802.90
  4. Step 4: Simplify right side
    1,243,166.70x = 1,715,456,217,061.31
  5. Step 5: Solve for x
    x = 1,715,456,217,061.31/1,243,166.70
  6. Step 6: Final answer
    x = 1,379,908.44

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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.