Home / 1,072,304.26-1,478,959.90-728,405.35

Finding the Fourth Proportional to 1,072,304.26, 1,478,959.90 and 728,405.35

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Solution

The fourth proportional to 1,072,304.26, 1,478,959.90 and 728,405.35 is: 1,004,642.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,304.26 : 1,478,959.90 = 728,405.35 : x
  2. Step 2: Convert to fraction form
    1,072,304.26/1,478,959.90 = 728,405.35/x
  3. Step 3: Cross multiply
    1,072,304.26x = 1,478,959.90 × 728,405.35
  4. Step 4: Simplify right side
    1,072,304.26x = 1,077,282,303,595.46
  5. Step 5: Solve for x
    x = 1,077,282,303,595.46/1,072,304.26
  6. Step 6: Final answer
    x = 1,004,642.38

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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.