Home / 1,345,208.58-1,855,337.49-861,818.34

Finding the Fourth Proportional to 1,345,208.58, 1,855,337.49 and 861,818.34

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Solution

The fourth proportional to 1,345,208.58, 1,855,337.49 and 861,818.34 is: 1,188,636.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,208.58 : 1,855,337.49 = 861,818.34 : x
  2. Step 2: Convert to fraction form
    1,345,208.58/1,855,337.49 = 861,818.34/x
  3. Step 3: Cross multiply
    1,345,208.58x = 1,855,337.49 × 861,818.34
  4. Step 4: Simplify right side
    1,345,208.58x = 1,598,963,875,771.57
  5. Step 5: Solve for x
    x = 1,598,963,875,771.57/1,345,208.58
  6. Step 6: Final answer
    x = 1,188,636.39

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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.