Home / 2,119,400.90-3,178,117.20-920,706.20

Finding the Fourth Proportional to 2,119,400.90, 3,178,117.20 and 920,706.20

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Solution

The fourth proportional to 2,119,400.90, 3,178,117.20 and 920,706.20 is: 1,380,631.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119,400.90 : 3,178,117.20 = 920,706.20 : x
  2. Step 2: Convert to fraction form
    2,119,400.90/3,178,117.20 = 920,706.20/x
  3. Step 3: Cross multiply
    2,119,400.90x = 3,178,117.20 × 920,706.20
  4. Step 4: Simplify right side
    2,119,400.90x = 2,926,112,210,366.64
  5. Step 5: Solve for x
    x = 2,926,112,210,366.64/2,119,400.90
  6. Step 6: Final answer
    x = 1,380,631.77

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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.