Home / 1,007,814.75-1,390,784.09-555,105.75

Finding the Fourth Proportional to 1,007,814.75, 1,390,784.09 and 555,105.75

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Solution

The fourth proportional to 1,007,814.75, 1,390,784.09 and 555,105.75 is: 766,045.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,814.75 : 1,390,784.09 = 555,105.75 : x
  2. Step 2: Convert to fraction form
    1,007,814.75/1,390,784.09 = 555,105.75/x
  3. Step 3: Cross multiply
    1,007,814.75x = 1,390,784.09 × 555,105.75
  4. Step 4: Simplify right side
    1,007,814.75x = 772,032,245,367.52
  5. Step 5: Solve for x
    x = 772,032,245,367.52/1,007,814.75
  6. Step 6: Final answer
    x = 766,045.79

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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.