Home / 1,111,455.14-1,533,802.07-621,424.56

Finding the Fourth Proportional to 1,111,455.14, 1,533,802.07 and 621,424.56

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Solution

The fourth proportional to 1,111,455.14, 1,533,802.07 and 621,424.56 is: 857,562.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,455.14 : 1,533,802.07 = 621,424.56 : x
  2. Step 2: Convert to fraction form
    1,111,455.14/1,533,802.07 = 621,424.56/x
  3. Step 3: Cross multiply
    1,111,455.14x = 1,533,802.07 × 621,424.56
  4. Step 4: Simplify right side
    1,111,455.14x = 953,142,276,476.84
  5. Step 5: Solve for x
    x = 953,142,276,476.84/1,111,455.14
  6. Step 6: Final answer
    x = 857,562.53

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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.