Home / 1,015,996.86-1,521,005.68-678,199.66

Finding the Fourth Proportional to 1,015,996.86, 1,521,005.68 and 678,199.66

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Solution

The fourth proportional to 1,015,996.86, 1,521,005.68 and 678,199.66 is: 1,015,303.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015,996.86 : 1,521,005.68 = 678,199.66 : x
  2. Step 2: Convert to fraction form
    1,015,996.86/1,521,005.68 = 678,199.66/x
  3. Step 3: Cross multiply
    1,015,996.86x = 1,521,005.68 × 678,199.66
  4. Step 4: Simplify right side
    1,015,996.86x = 1,031,545,535,034.07
  5. Step 5: Solve for x
    x = 1,031,545,535,034.07/1,015,996.86
  6. Step 6: Final answer
    x = 1,015,303.86

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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.