Home / 1,119,946.80-1,679,920.20-986,977.20

Finding the Fourth Proportional to 1,119,946.80, 1,679,920.20 and 986,977.20

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Solution

The fourth proportional to 1,119,946.80, 1,679,920.20 and 986,977.20 is: 1,480,465.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,946.80 : 1,679,920.20 = 986,977.20 : x
  2. Step 2: Convert to fraction form
    1,119,946.80/1,679,920.20 = 986,977.20/x
  3. Step 3: Cross multiply
    1,119,946.80x = 1,679,920.20 × 986,977.20
  4. Step 4: Simplify right side
    1,119,946.80x = 1,658,042,935,219.44
  5. Step 5: Solve for x
    x = 1,658,042,935,219.44/1,119,946.80
  6. Step 6: Final answer
    x = 1,480,465.80

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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.