Home / 1,436,628.18-2,155,257.63-425,828.10

Finding the Fourth Proportional to 1,436,628.18, 2,155,257.63 and 425,828.10

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Solution

The fourth proportional to 1,436,628.18, 2,155,257.63 and 425,828.10 is: 638,835.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,436,628.18 : 2,155,257.63 = 425,828.10 : x
  2. Step 2: Convert to fraction form
    1,436,628.18/2,155,257.63 = 425,828.10/x
  3. Step 3: Cross multiply
    1,436,628.18x = 2,155,257.63 × 425,828.10
  4. Step 4: Simplify right side
    1,436,628.18x = 917,769,261,593.40
  5. Step 5: Solve for x
    x = 917,769,261,593.40/1,436,628.18
  6. Step 6: Final answer
    x = 638,835.63

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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.