Home / 1,478,355.47-2,221,269.93-1,418,568.56

Finding the Fourth Proportional to 1,478,355.47, 2,221,269.93 and 1,418,568.56

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Solution

The fourth proportional to 1,478,355.47, 2,221,269.93 and 1,418,568.56 is: 2,131,438.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,355.47 : 2,221,269.93 = 1,418,568.56 : x
  2. Step 2: Convert to fraction form
    1,478,355.47/2,221,269.93 = 1,418,568.56/x
  3. Step 3: Cross multiply
    1,478,355.47x = 2,221,269.93 × 1,418,568.56
  4. Step 4: Simplify right side
    1,478,355.47x = 3,151,023,674,865.05
  5. Step 5: Solve for x
    x = 3,151,023,674,865.05/1,478,355.47
  6. Step 6: Final answer
    x = 2,131,438.45

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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.