Home / 3,119,260.45-4,678,890.68-1,521,000.85

Finding the Fourth Proportional to 3,119,260.45, 4,678,890.68 and 1,521,000.85

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Solution

The fourth proportional to 3,119,260.45, 4,678,890.68 and 1,521,000.85 is: 2,281,501.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119,260.45 : 4,678,890.68 = 1,521,000.85 : x
  2. Step 2: Convert to fraction form
    3,119,260.45/4,678,890.68 = 1,521,000.85/x
  3. Step 3: Cross multiply
    3,119,260.45x = 4,678,890.68 × 1,521,000.85
  4. Step 4: Simplify right side
    3,119,260.45x = 7,116,596,693,732.07
  5. Step 5: Solve for x
    x = 7,116,596,693,732.07/3,119,260.45
  6. Step 6: Final answer
    x = 2,281,501.28

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Similar ratio
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1.5x scale

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.