Home / 1,309,436.12-1,964,237.20-410,913.29

Finding the Fourth Proportional to 1,309,436.12, 1,964,237.20 and 410,913.29

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Solution

The fourth proportional to 1,309,436.12, 1,964,237.20 and 410,913.29 is: 616,395.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,436.12 : 1,964,237.20 = 410,913.29 : x
  2. Step 2: Convert to fraction form
    1,309,436.12/1,964,237.20 = 410,913.29/x
  3. Step 3: Cross multiply
    1,309,436.12x = 1,964,237.20 × 410,913.29
  4. Step 4: Simplify right side
    1,309,436.12x = 807,131,174,075.70
  5. Step 5: Solve for x
    x = 807,131,174,075.70/1,309,436.12
  6. Step 6: Final answer
    x = 616,395.99

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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.