Home / 1,179,177.35-1,768,330.85-420,815.93

Finding the Fourth Proportional to 1,179,177.35, 1,768,330.85 and 420,815.93

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Solution

The fourth proportional to 1,179,177.35, 1,768,330.85 and 420,815.93 is: 631,068.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,177.35 : 1,768,330.85 = 420,815.93 : x
  2. Step 2: Convert to fraction form
    1,179,177.35/1,768,330.85 = 420,815.93/x
  3. Step 3: Cross multiply
    1,179,177.35x = 1,768,330.85 × 420,815.93
  4. Step 4: Simplify right side
    1,179,177.35x = 744,141,780,244.71
  5. Step 5: Solve for x
    x = 744,141,780,244.71/1,179,177.35
  6. Step 6: Final answer
    x = 631,068.59

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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.