Home / 1,207,728.28-1,667,036.46-778,007.08

Finding the Fourth Proportional to 1,207,728.28, 1,667,036.46 and 778,007.08

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Solution

The fourth proportional to 1,207,728.28, 1,667,036.46 and 778,007.08 is: 1,073,889.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,728.28 : 1,667,036.46 = 778,007.08 : x
  2. Step 2: Convert to fraction form
    1,207,728.28/1,667,036.46 = 778,007.08/x
  3. Step 3: Cross multiply
    1,207,728.28x = 1,667,036.46 × 778,007.08
  4. Step 4: Simplify right side
    1,207,728.28x = 1,296,966,168,498.14
  5. Step 5: Solve for x
    x = 1,296,966,168,498.14/1,207,728.28
  6. Step 6: Final answer
    x = 1,073,889.04

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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.