Home / 1,423,198.55-1,964,060.56-778,603.79

Finding the Fourth Proportional to 1,423,198.55, 1,964,060.56 and 778,603.79

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Solution

The fourth proportional to 1,423,198.55, 1,964,060.56 and 778,603.79 is: 1,074,498.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,198.55 : 1,964,060.56 = 778,603.79 : x
  2. Step 2: Convert to fraction form
    1,423,198.55/1,964,060.56 = 778,603.79/x
  3. Step 3: Cross multiply
    1,423,198.55x = 1,964,060.56 × 778,603.79
  4. Step 4: Simplify right side
    1,423,198.55x = 1,529,225,001,688.93
  5. Step 5: Solve for x
    x = 1,529,225,001,688.93/1,423,198.55
  6. Step 6: Final answer
    x = 1,074,498.71

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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.