Home / 1,029,020.04-1,420,098.36-621,115.38

Finding the Fourth Proportional to 1,029,020.04, 1,420,098.36 and 621,115.38

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Solution

The fourth proportional to 1,029,020.04, 1,420,098.36 and 621,115.38 is: 857,169.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,020.04 : 1,420,098.36 = 621,115.38 : x
  2. Step 2: Convert to fraction form
    1,029,020.04/1,420,098.36 = 621,115.38/x
  3. Step 3: Cross multiply
    1,029,020.04x = 1,420,098.36 × 621,115.38
  4. Step 4: Simplify right side
    1,029,020.04x = 882,044,932,508.78
  5. Step 5: Solve for x
    x = 882,044,932,508.78/1,029,020.04
  6. Step 6: Final answer
    x = 857,169.83

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1.5x scale

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.