Home / 1,090,684.07-1,636,773.48-380,712.05

Finding the Fourth Proportional to 1,090,684.07, 1,636,773.48 and 380,712.05

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Solution

The fourth proportional to 1,090,684.07, 1,636,773.48 and 380,712.05 is: 571,328.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,684.07 : 1,636,773.48 = 380,712.05 : x
  2. Step 2: Convert to fraction form
    1,090,684.07/1,636,773.48 = 380,712.05/x
  3. Step 3: Cross multiply
    1,090,684.07x = 1,636,773.48 × 380,712.05
  4. Step 4: Simplify right side
    1,090,684.07x = 623,139,386,956.43
  5. Step 5: Solve for x
    x = 623,139,386,956.43/1,090,684.07
  6. Step 6: Final answer
    x = 571,328.95

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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.