Home / 1,038,517.80-1,557,776.70-637,859.40

Finding the Fourth Proportional to 1,038,517.80, 1,557,776.70 and 637,859.40

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Solution

The fourth proportional to 1,038,517.80, 1,557,776.70 and 637,859.40 is: 956,789.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,517.80 : 1,557,776.70 = 637,859.40 : x
  2. Step 2: Convert to fraction form
    1,038,517.80/1,557,776.70 = 637,859.40/x
  3. Step 3: Cross multiply
    1,038,517.80x = 1,557,776.70 × 637,859.40
  4. Step 4: Simplify right side
    1,038,517.80x = 993,642,511,195.98
  5. Step 5: Solve for x
    x = 993,642,511,195.98/1,038,517.80
  6. Step 6: Final answer
    x = 956,789.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.