Home / 1,339,434.65-2,009,428.78-440,930.31

Finding the Fourth Proportional to 1,339,434.65, 2,009,428.78 and 440,930.31

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Solution

The fourth proportional to 1,339,434.65, 2,009,428.78 and 440,930.31 is: 661,486.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339,434.65 : 2,009,428.78 = 440,930.31 : x
  2. Step 2: Convert to fraction form
    1,339,434.65/2,009,428.78 = 440,930.31/x
  3. Step 3: Cross multiply
    1,339,434.65x = 2,009,428.78 × 440,930.31
  4. Step 4: Simplify right side
    1,339,434.65x = 886,018,046,250.64
  5. Step 5: Solve for x
    x = 886,018,046,250.64/1,339,434.65
  6. Step 6: Final answer
    x = 661,486.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.