Home / 1,090,929.12-1,636,354.80-380,954.40

Finding the Fourth Proportional to 1,090,929.12, 1,636,354.80 and 380,954.40

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Solution

The fourth proportional to 1,090,929.12, 1,636,354.80 and 380,954.40 is: 571,418.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,929.12 : 1,636,354.80 = 380,954.40 : x
  2. Step 2: Convert to fraction form
    1,090,929.12/1,636,354.80 = 380,954.40/x
  3. Step 3: Cross multiply
    1,090,929.12x = 1,636,354.80 × 380,954.40
  4. Step 4: Simplify right side
    1,090,929.12x = 623,376,561,021.12
  5. Step 5: Solve for x
    x = 623,376,561,021.12/1,090,929.12
  6. Step 6: Final answer
    x = 571,418.02

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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.