Home / 1,869,107.70-2,803,621.31-521,234.39

Finding the Fourth Proportional to 1,869,107.70, 2,803,621.31 and 521,234.39

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Solution

The fourth proportional to 1,869,107.70, 2,803,621.31 and 521,234.39 is: 781,840.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,869,107.70 : 2,803,621.31 = 521,234.39 : x
  2. Step 2: Convert to fraction form
    1,869,107.70/2,803,621.31 = 521,234.39/x
  3. Step 3: Cross multiply
    1,869,107.70x = 2,803,621.31 × 521,234.39
  4. Step 4: Simplify right side
    1,869,107.70x = 1,461,343,849,666.36
  5. Step 5: Solve for x
    x = 1,461,343,849,666.36/1,869,107.70
  6. Step 6: Final answer
    x = 781,840.37

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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.