Home / 1,090,607.74-1,636,658.90-380,635.79

Finding the Fourth Proportional to 1,090,607.74, 1,636,658.90 and 380,635.79

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Solution

The fourth proportional to 1,090,607.74, 1,636,658.90 and 380,635.79 is: 571,214.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,607.74 : 1,636,658.90 = 380,635.79 : x
  2. Step 2: Convert to fraction form
    1,090,607.74/1,636,658.90 = 380,635.79/x
  3. Step 3: Cross multiply
    1,090,607.74x = 1,636,658.90 × 380,635.79
  4. Step 4: Simplify right side
    1,090,607.74x = 622,970,944,702.94
  5. Step 5: Solve for x
    x = 622,970,944,702.94/1,090,607.74
  6. Step 6: Final answer
    x = 571,214.49

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Double scale
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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.