Home / 1,048,764.34-1,447,405.80-641,104.78

Finding the Fourth Proportional to 1,048,764.34, 1,447,405.80 and 641,104.78

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Solution

The fourth proportional to 1,048,764.34, 1,447,405.80 and 641,104.78 is: 884,792.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,048,764.34 : 1,447,405.80 = 641,104.78 : x
  2. Step 2: Convert to fraction form
    1,048,764.34/1,447,405.80 = 641,104.78/x
  3. Step 3: Cross multiply
    1,048,764.34x = 1,447,405.80 × 641,104.78
  4. Step 4: Simplify right side
    1,048,764.34x = 927,938,776,979.72
  5. Step 5: Solve for x
    x = 927,938,776,979.72/1,048,764.34
  6. Step 6: Final answer
    x = 884,792.46

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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.