Home / 1,419,112.32-2,128,948.89-520,562.40

Finding the Fourth Proportional to 1,419,112.32, 2,128,948.89 and 520,562.40

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Solution

The fourth proportional to 1,419,112.32, 2,128,948.89 and 520,562.40 is: 780,946.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,112.32 : 2,128,948.89 = 520,562.40 : x
  2. Step 2: Convert to fraction form
    1,419,112.32/2,128,948.89 = 520,562.40/x
  3. Step 3: Cross multiply
    1,419,112.32x = 2,128,948.89 × 520,562.40
  4. Step 4: Simplify right side
    1,419,112.32x = 1,108,250,743,655.74
  5. Step 5: Solve for x
    x = 1,108,250,743,655.74/1,419,112.32
  6. Step 6: Final answer
    x = 780,946.46

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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.