Home / 1,228,495.61-1,695,329.62-712,554.97

Finding the Fourth Proportional to 1,228,495.61, 1,695,329.62 and 712,554.97

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Solution

The fourth proportional to 1,228,495.61, 1,695,329.62 and 712,554.97 is: 983,329.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,495.61 : 1,695,329.62 = 712,554.97 : x
  2. Step 2: Convert to fraction form
    1,228,495.61/1,695,329.62 = 712,554.97/x
  3. Step 3: Cross multiply
    1,228,495.61x = 1,695,329.62 × 712,554.97
  4. Step 4: Simplify right side
    1,228,495.61x = 1,208,015,540,499.50
  5. Step 5: Solve for x
    x = 1,208,015,540,499.50/1,228,495.61
  6. Step 6: Final answer
    x = 983,329.15

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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.