Home / 1,478,315.76-2,221,210.26-1,418,528.58

Finding the Fourth Proportional to 1,478,315.76, 2,221,210.26 and 1,418,528.58

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Solution

The fourth proportional to 1,478,315.76, 2,221,210.26 and 1,418,528.58 is: 2,131,378.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,315.76 : 2,221,210.26 = 1,418,528.58 : x
  2. Step 2: Convert to fraction form
    1,478,315.76/2,221,210.26 = 1,418,528.58/x
  3. Step 3: Cross multiply
    1,478,315.76x = 2,221,210.26 × 1,418,528.58
  4. Step 4: Simplify right side
    1,478,315.76x = 3,150,850,235,999.23
  5. Step 5: Solve for x
    x = 3,150,850,235,999.23/1,478,315.76
  6. Step 6: Final answer
    x = 2,131,378.37

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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.