Home / 1,305,139.64-1,801,065.57-724,329.05

Finding the Fourth Proportional to 1,305,139.64, 1,801,065.57 and 724,329.05

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Solution

The fourth proportional to 1,305,139.64, 1,801,065.57 and 724,329.05 is: 999,559.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305,139.64 : 1,801,065.57 = 724,329.05 : x
  2. Step 2: Convert to fraction form
    1,305,139.64/1,801,065.57 = 724,329.05/x
  3. Step 3: Cross multiply
    1,305,139.64x = 1,801,065.57 × 724,329.05
  4. Step 4: Simplify right side
    1,305,139.64x = 1,304,564,104,300.48
  5. Step 5: Solve for x
    x = 1,304,564,104,300.48/1,305,139.64
  6. Step 6: Final answer
    x = 999,559.03

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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.