Home / 1,297,925.80-1,946,888.70-920,012.20

Finding the Fourth Proportional to 1,297,925.80, 1,946,888.70 and 920,012.20

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Solution

The fourth proportional to 1,297,925.80, 1,946,888.70 and 920,012.20 is: 1,380,018.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,925.80 : 1,946,888.70 = 920,012.20 : x
  2. Step 2: Convert to fraction form
    1,297,925.80/1,946,888.70 = 920,012.20/x
  3. Step 3: Cross multiply
    1,297,925.80x = 1,946,888.70 × 920,012.20
  4. Step 4: Simplify right side
    1,297,925.80x = 1,791,161,356,042.14
  5. Step 5: Solve for x
    x = 1,791,161,356,042.14/1,297,925.80
  6. Step 6: Final answer
    x = 1,380,018.30

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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.