Home / 1,210,624.57-1,670,262.01-781,190.11

Finding the Fourth Proportional to 1,210,624.57, 1,670,262.01 and 781,190.11

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Solution

The fourth proportional to 1,210,624.57, 1,670,262.01 and 781,190.11 is: 1,077,784.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,624.57 : 1,670,262.01 = 781,190.11 : x
  2. Step 2: Convert to fraction form
    1,210,624.57/1,670,262.01 = 781,190.11/x
  3. Step 3: Cross multiply
    1,210,624.57x = 1,670,262.01 × 781,190.11
  4. Step 4: Simplify right side
    1,210,624.57x = 1,304,792,163,320.72
  5. Step 5: Solve for x
    x = 1,304,792,163,320.72/1,210,624.57
  6. Step 6: Final answer
    x = 1,077,784.31

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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.