Home / 1,126,827.17-1,554,963.64-643,297.87

Finding the Fourth Proportional to 1,126,827.17, 1,554,963.64 and 643,297.87

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Solution

The fourth proportional to 1,126,827.17, 1,554,963.64 and 643,297.87 is: 887,718.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,827.17 : 1,554,963.64 = 643,297.87 : x
  2. Step 2: Convert to fraction form
    1,126,827.17/1,554,963.64 = 643,297.87/x
  3. Step 3: Cross multiply
    1,126,827.17x = 1,554,963.64 × 643,297.87
  4. Step 4: Simplify right side
    1,126,827.17x = 1,000,304,797,539.45
  5. Step 5: Solve for x
    x = 1,000,304,797,539.45/1,126,827.17
  6. Step 6: Final answer
    x = 887,718.03

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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.