Home / 1,419,477.60-2,129,216.40-672,981.60

Finding the Fourth Proportional to 1,419,477.60, 2,129,216.40 and 672,981.60

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Solution

The fourth proportional to 1,419,477.60, 2,129,216.40 and 672,981.60 is: 1,009,472.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,477.60 : 2,129,216.40 = 672,981.60 : x
  2. Step 2: Convert to fraction form
    1,419,477.60/2,129,216.40 = 672,981.60/x
  3. Step 3: Cross multiply
    1,419,477.60x = 2,129,216.40 × 672,981.60
  4. Step 4: Simplify right side
    1,419,477.60x = 1,432,923,459,618.24
  5. Step 5: Solve for x
    x = 1,432,923,459,618.24/1,419,477.60
  6. Step 6: Final answer
    x = 1,009,472.40

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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.