Home / 1,042,725.20-1,438,218.72-956,961.18

Finding the Fourth Proportional to 1,042,725.20, 1,438,218.72 and 956,961.18

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Solution

The fourth proportional to 1,042,725.20, 1,438,218.72 and 956,961.18 is: 1,319,925.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042,725.20 : 1,438,218.72 = 956,961.18 : x
  2. Step 2: Convert to fraction form
    1,042,725.20/1,438,218.72 = 956,961.18/x
  3. Step 3: Cross multiply
    1,042,725.20x = 1,438,218.72 × 956,961.18
  4. Step 4: Simplify right side
    1,042,725.20x = 1,376,319,483,389.29
  5. Step 5: Solve for x
    x = 1,376,319,483,389.29/1,042,725.20
  6. Step 6: Final answer
    x = 1,319,925.41

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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.