Home / 836,884.73-1,155,457.05-642,947.03

Finding the Fourth Proportional to 836,884.73, 1,155,457.05 and 642,947.03

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Solution

The fourth proportional to 836,884.73, 1,155,457.05 and 642,947.03 is: 887,694.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,884.73 : 1,155,457.05 = 642,947.03 : x
  2. Step 2: Convert to fraction form
    836,884.73/1,155,457.05 = 642,947.03/x
  3. Step 3: Cross multiply
    836,884.73x = 1,155,457.05 × 642,947.03
  4. Step 4: Simplify right side
    836,884.73x = 742,897,678,590.06
  5. Step 5: Solve for x
    x = 742,897,678,590.06/836,884.73
  6. Step 6: Final answer
    x = 887,694.15

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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.