Home / 1,079,930.64-1,620,137.52-406,017.78

Finding the Fourth Proportional to 1,079,930.64, 1,620,137.52 and 406,017.78

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Solution

The fourth proportional to 1,079,930.64, 1,620,137.52 and 406,017.78 is: 609,117.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,930.64 : 1,620,137.52 = 406,017.78 : x
  2. Step 2: Convert to fraction form
    1,079,930.64/1,620,137.52 = 406,017.78/x
  3. Step 3: Cross multiply
    1,079,930.64x = 1,620,137.52 × 406,017.78
  4. Step 4: Simplify right side
    1,079,930.64x = 657,804,639,165.11
  5. Step 5: Solve for x
    x = 657,804,639,165.11/1,079,930.64
  6. Step 6: Final answer
    x = 609,117.49

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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.