Home / 1,111,463.54-1,533,909.75-628,128.94

Finding the Fourth Proportional to 1,111,463.54, 1,533,909.75 and 628,128.94

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Solution

The fourth proportional to 1,111,463.54, 1,533,909.75 and 628,128.94 is: 866,868.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,463.54 : 1,533,909.75 = 628,128.94 : x
  2. Step 2: Convert to fraction form
    1,111,463.54/1,533,909.75 = 628,128.94/x
  3. Step 3: Cross multiply
    1,111,463.54x = 1,533,909.75 × 628,128.94
  4. Step 4: Simplify right side
    1,111,463.54x = 963,493,105,323.17
  5. Step 5: Solve for x
    x = 963,493,105,323.17/1,111,463.54
  6. Step 6: Final answer
    x = 866,868.84

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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.