Home / 1,188,483.70-1,640,742.96-929,810.81

Finding the Fourth Proportional to 1,188,483.70, 1,640,742.96 and 929,810.81

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Solution

The fourth proportional to 1,188,483.70, 1,640,742.96 and 929,810.81 is: 1,283,636.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,483.70 : 1,640,742.96 = 929,810.81 : x
  2. Step 2: Convert to fraction form
    1,188,483.70/1,640,742.96 = 929,810.81/x
  3. Step 3: Cross multiply
    1,188,483.70x = 1,640,742.96 × 929,810.81
  4. Step 4: Simplify right side
    1,188,483.70x = 1,525,580,540,639.40
  5. Step 5: Solve for x
    x = 1,525,580,540,639.40/1,188,483.70
  6. Step 6: Final answer
    x = 1,283,636.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.