Home / 1,221,592.77-1,685,799.45-712,393.56

Finding the Fourth Proportional to 1,221,592.77, 1,685,799.45 and 712,393.56

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Solution

The fourth proportional to 1,221,592.77, 1,685,799.45 and 712,393.56 is: 983,103.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,592.77 : 1,685,799.45 = 712,393.56 : x
  2. Step 2: Convert to fraction form
    1,221,592.77/1,685,799.45 = 712,393.56/x
  3. Step 3: Cross multiply
    1,221,592.77x = 1,685,799.45 × 712,393.56
  4. Step 4: Simplify right side
    1,221,592.77x = 1,200,952,671,631.54
  5. Step 5: Solve for x
    x = 1,200,952,671,631.54/1,221,592.77
  6. Step 6: Final answer
    x = 983,103.95

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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.