Home / 1,423,167.35-1,963,933.29-842,420.43

Finding the Fourth Proportional to 1,423,167.35, 1,963,933.29 and 842,420.43

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Solution

The fourth proportional to 1,423,167.35, 1,963,933.29 and 842,420.43 is: 1,162,517.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,167.35 : 1,963,933.29 = 842,420.43 : x
  2. Step 2: Convert to fraction form
    1,423,167.35/1,963,933.29 = 842,420.43/x
  3. Step 3: Cross multiply
    1,423,167.35x = 1,963,933.29 × 842,420.43
  4. Step 4: Simplify right side
    1,423,167.35x = 1,654,457,526,653.11
  5. Step 5: Solve for x
    x = 1,654,457,526,653.11/1,423,167.35
  6. Step 6: Final answer
    x = 1,162,517.91

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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.