Home / 1,090,684.70-1,636,774.41-380,712.68

Finding the Fourth Proportional to 1,090,684.70, 1,636,774.41 and 380,712.68

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Solution

The fourth proportional to 1,090,684.70, 1,636,774.41 and 380,712.68 is: 571,329.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,684.70 : 1,636,774.41 = 380,712.68 : x
  2. Step 2: Convert to fraction form
    1,090,684.70/1,636,774.41 = 380,712.68/x
  3. Step 3: Cross multiply
    1,090,684.70x = 1,636,774.41 × 380,712.68
  4. Step 4: Simplify right side
    1,090,684.70x = 623,140,764,002.65
  5. Step 5: Solve for x
    x = 623,140,764,002.65/1,090,684.70
  6. Step 6: Final answer
    x = 571,329.89

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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.