Home / 1,238,628.89-1,857,939.74-340,071.45

Finding the Fourth Proportional to 1,238,628.89, 1,857,939.74 and 340,071.45

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Solution

The fourth proportional to 1,238,628.89, 1,857,939.74 and 340,071.45 is: 510,106.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,628.89 : 1,857,939.74 = 340,071.45 : x
  2. Step 2: Convert to fraction form
    1,238,628.89/1,857,939.74 = 340,071.45/x
  3. Step 3: Cross multiply
    1,238,628.89x = 1,857,939.74 × 340,071.45
  4. Step 4: Simplify right side
    1,238,628.89x = 631,832,259,694.07
  5. Step 5: Solve for x
    x = 631,832,259,694.07/1,238,628.89
  6. Step 6: Final answer
    x = 510,106.19

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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.