Home / 1,029,661.64-1,420,090.52-724,747.40

Finding the Fourth Proportional to 1,029,661.64, 1,420,090.52 and 724,747.40

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Solution

The fourth proportional to 1,029,661.64, 1,420,090.52 and 724,747.40 is: 999,558.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,661.64 : 1,420,090.52 = 724,747.40 : x
  2. Step 2: Convert to fraction form
    1,029,661.64/1,420,090.52 = 724,747.40/x
  3. Step 3: Cross multiply
    1,029,661.64x = 1,420,090.52 × 724,747.40
  4. Step 4: Simplify right side
    1,029,661.64x = 1,029,206,912,134.65
  5. Step 5: Solve for x
    x = 1,029,206,912,134.65/1,029,661.64
  6. Step 6: Final answer
    x = 999,558.37

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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.