Home / 912,236.28-1,258,887.56-509,828.28

Finding the Fourth Proportional to 912,236.28, 1,258,887.56 and 509,828.28

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Solution

The fourth proportional to 912,236.28, 1,258,887.56 and 509,828.28 is: 703,563.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,236.28 : 1,258,887.56 = 509,828.28 : x
  2. Step 2: Convert to fraction form
    912,236.28/1,258,887.56 = 509,828.28/x
  3. Step 3: Cross multiply
    912,236.28x = 1,258,887.56 × 509,828.28
  4. Step 4: Simplify right side
    912,236.28x = 641,816,479,428.20
  5. Step 5: Solve for x
    x = 641,816,479,428.20/912,236.28
  6. Step 6: Final answer
    x = 703,563.86

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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.