Home / 1,421,878.76-1,962,194.34-818,267.24

Finding the Fourth Proportional to 1,421,878.76, 1,962,194.34 and 818,267.24

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Solution

The fourth proportional to 1,421,878.76, 1,962,194.34 and 818,267.24 is: 1,129,209.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,878.76 : 1,962,194.34 = 818,267.24 : x
  2. Step 2: Convert to fraction form
    1,421,878.76/1,962,194.34 = 818,267.24/x
  3. Step 3: Cross multiply
    1,421,878.76x = 1,962,194.34 × 818,267.24
  4. Step 4: Simplify right side
    1,421,878.76x = 1,605,599,346,935.42
  5. Step 5: Solve for x
    x = 1,605,599,346,935.42/1,421,878.76
  6. Step 6: Final answer
    x = 1,129,209.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.