Home / 1,312,308.26-1,810,985.45-708,696.26

Finding the Fourth Proportional to 1,312,308.26, 1,810,985.45 and 708,696.26

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Solution

The fourth proportional to 1,312,308.26, 1,810,985.45 and 708,696.26 is: 978,000.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,308.26 : 1,810,985.45 = 708,696.26 : x
  2. Step 2: Convert to fraction form
    1,312,308.26/1,810,985.45 = 708,696.26/x
  3. Step 3: Cross multiply
    1,312,308.26x = 1,810,985.45 × 708,696.26
  4. Step 4: Simplify right side
    1,312,308.26x = 1,283,438,611,785.94
  5. Step 5: Solve for x
    x = 1,283,438,611,785.94/1,312,308.26
  6. Step 6: Final answer
    x = 978,000.86

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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.