Home / 1,186,140.09-1,636,875.54-662,850.69

Finding the Fourth Proportional to 1,186,140.09, 1,636,875.54 and 662,850.69

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Solution

The fourth proportional to 1,186,140.09, 1,636,875.54 and 662,850.69 is: 914,735.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,140.09 : 1,636,875.54 = 662,850.69 : x
  2. Step 2: Convert to fraction form
    1,186,140.09/1,636,875.54 = 662,850.69/x
  3. Step 3: Cross multiply
    1,186,140.09x = 1,636,875.54 × 662,850.69
  4. Step 4: Simplify right side
    1,186,140.09x = 1,085,004,081,133.12
  5. Step 5: Solve for x
    x = 1,085,004,081,133.12/1,186,140.09
  6. Step 6: Final answer
    x = 914,735.19

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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.