Home / 1,355,366.61-1,870,091.91-811,295.55

Finding the Fourth Proportional to 1,355,366.61, 1,870,091.91 and 811,295.55

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Solution

The fourth proportional to 1,355,366.61, 1,870,091.91 and 811,295.55 is: 1,119,399.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,366.61 : 1,870,091.91 = 811,295.55 : x
  2. Step 2: Convert to fraction form
    1,355,366.61/1,870,091.91 = 811,295.55/x
  3. Step 3: Cross multiply
    1,355,366.61x = 1,870,091.91 × 811,295.55
  4. Step 4: Simplify right side
    1,355,366.61x = 1,517,197,244,674.00
  5. Step 5: Solve for x
    x = 1,517,197,244,674.00/1,355,366.61
  6. Step 6: Final answer
    x = 1,119,399.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.