Home / 1,012,988.87-1,520,001.71-414,392.39

Finding the Fourth Proportional to 1,012,988.87, 1,520,001.71 and 414,392.39

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Solution

The fourth proportional to 1,012,988.87, 1,520,001.71 and 414,392.39 is: 621,800.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,988.87 : 1,520,001.71 = 414,392.39 : x
  2. Step 2: Convert to fraction form
    1,012,988.87/1,520,001.71 = 414,392.39/x
  3. Step 3: Cross multiply
    1,012,988.87x = 1,520,001.71 × 414,392.39
  4. Step 4: Simplify right side
    1,012,988.87x = 629,877,131,739.02
  5. Step 5: Solve for x
    x = 629,877,131,739.02/1,012,988.87
  6. Step 6: Final answer
    x = 621,800.65

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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.