Home / 1,079,929.64-1,620,136.02-406,016.78

Finding the Fourth Proportional to 1,079,929.64, 1,620,136.02 and 406,016.78

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Solution

The fourth proportional to 1,079,929.64, 1,620,136.02 and 406,016.78 is: 609,115.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,929.64 : 1,620,136.02 = 406,016.78 : x
  2. Step 2: Convert to fraction form
    1,079,929.64/1,620,136.02 = 406,016.78/x
  3. Step 3: Cross multiply
    1,079,929.64x = 1,620,136.02 × 406,016.78
  4. Step 4: Simplify right side
    1,079,929.64x = 657,802,401,901.74
  5. Step 5: Solve for x
    x = 657,802,401,901.74/1,079,929.64
  6. Step 6: Final answer
    x = 609,115.98

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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.