Home / 1,237,939.31-1,857,443.47-669,720.65

Finding the Fourth Proportional to 1,237,939.31, 1,857,443.47 and 669,720.65

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Solution

The fourth proportional to 1,237,939.31, 1,857,443.47 and 669,720.65 is: 1,004,870.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,237,939.31 : 1,857,443.47 = 669,720.65 : x
  2. Step 2: Convert to fraction form
    1,237,939.31/1,857,443.47 = 669,720.65/x
  3. Step 3: Cross multiply
    1,237,939.31x = 1,857,443.47 × 669,720.65
  4. Step 4: Simplify right side
    1,237,939.31x = 1,243,968,248,066.66
  5. Step 5: Solve for x
    x = 1,243,968,248,066.66/1,237,939.31
  6. Step 6: Final answer
    x = 1,004,870.14

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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.