Home / 1,090,762.43-1,636,890.98-380,790.45

Finding the Fourth Proportional to 1,090,762.43, 1,636,890.98 and 380,790.45

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Solution

The fourth proportional to 1,090,762.43, 1,636,890.98 and 380,790.45 is: 571,446.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,762.43 : 1,636,890.98 = 380,790.45 : x
  2. Step 2: Convert to fraction form
    1,090,762.43/1,636,890.98 = 380,790.45/x
  3. Step 3: Cross multiply
    1,090,762.43x = 1,636,890.98 × 380,790.45
  4. Step 4: Simplify right side
    1,090,762.43x = 623,312,450,971.19
  5. Step 5: Solve for x
    x = 623,312,450,971.19/1,090,762.43
  6. Step 6: Final answer
    x = 571,446.57

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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.