Home / 1,312,318.83-1,811,000.00-708,706.83

Finding the Fourth Proportional to 1,312,318.83, 1,811,000.00 and 708,706.83

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Solution

The fourth proportional to 1,312,318.83, 1,811,000.00 and 708,706.83 is: 978,015.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,318.83 : 1,811,000.00 = 708,706.83 : x
  2. Step 2: Convert to fraction form
    1,312,318.83/1,811,000.00 = 708,706.83/x
  3. Step 3: Cross multiply
    1,312,318.83x = 1,811,000.00 × 708,706.83
  4. Step 4: Simplify right side
    1,312,318.83x = 1,283,468,065,586.47
  5. Step 5: Solve for x
    x = 1,283,468,065,586.47/1,312,318.83
  6. Step 6: Final answer
    x = 978,015.43

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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.