Home / 1,587,411.09-2,190,668.06-862,300.31

Finding the Fourth Proportional to 1,587,411.09, 2,190,668.06 and 862,300.31

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Solution

The fourth proportional to 1,587,411.09, 2,190,668.06 and 862,300.31 is: 1,189,996.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,411.09 : 2,190,668.06 = 862,300.31 : x
  2. Step 2: Convert to fraction form
    1,587,411.09/2,190,668.06 = 862,300.31/x
  3. Step 3: Cross multiply
    1,587,411.09x = 2,190,668.06 × 862,300.31
  4. Step 4: Simplify right side
    1,587,411.09x = 1,889,013,733,597.07
  5. Step 5: Solve for x
    x = 1,889,013,733,597.07/1,587,411.09
  6. Step 6: Final answer
    x = 1,189,996.56

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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.