Home / 1,077,617.80-1,616,426.70-990,137.80

Finding the Fourth Proportional to 1,077,617.80, 1,616,426.70 and 990,137.80

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Solution

The fourth proportional to 1,077,617.80, 1,616,426.70 and 990,137.80 is: 1,485,206.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077,617.80 : 1,616,426.70 = 990,137.80 : x
  2. Step 2: Convert to fraction form
    1,077,617.80/1,616,426.70 = 990,137.80/x
  3. Step 3: Cross multiply
    1,077,617.80x = 1,616,426.70 × 990,137.80
  4. Step 4: Simplify right side
    1,077,617.80x = 1,600,485,176,599.26
  5. Step 5: Solve for x
    x = 1,600,485,176,599.26/1,077,617.80
  6. Step 6: Final answer
    x = 1,485,206.70

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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.