Home / 1,219,045.76-1,828,860.60-508,678.64

Finding the Fourth Proportional to 1,219,045.76, 1,828,860.60 and 508,678.64

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Solution

The fourth proportional to 1,219,045.76, 1,828,860.60 and 508,678.64 is: 763,139.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,045.76 : 1,828,860.60 = 508,678.64 : x
  2. Step 2: Convert to fraction form
    1,219,045.76/1,828,860.60 = 508,678.64/x
  3. Step 3: Cross multiply
    1,219,045.76x = 1,828,860.60 × 508,678.64
  4. Step 4: Simplify right side
    1,219,045.76x = 930,302,322,757.58
  5. Step 5: Solve for x
    x = 930,302,322,757.58/1,219,045.76
  6. Step 6: Final answer
    x = 763,139.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.