Home / 1,521,472.78-2,099,698.02-842,409.28

Finding the Fourth Proportional to 1,521,472.78, 2,099,698.02 and 842,409.28

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Solution

The fourth proportional to 1,521,472.78, 2,099,698.02 and 842,409.28 is: 1,162,561.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521,472.78 : 2,099,698.02 = 842,409.28 : x
  2. Step 2: Convert to fraction form
    1,521,472.78/2,099,698.02 = 842,409.28/x
  3. Step 3: Cross multiply
    1,521,472.78x = 2,099,698.02 × 842,409.28
  4. Step 4: Simplify right side
    1,521,472.78x = 1,768,805,097,245.63
  5. Step 5: Solve for x
    x = 1,768,805,097,245.63/1,521,472.78
  6. Step 6: Final answer
    x = 1,162,561.12

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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.