Home / 1,427,862.72-1,970,465.76-783,284.16

Finding the Fourth Proportional to 1,427,862.72, 1,970,465.76 and 783,284.16

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Solution

The fourth proportional to 1,427,862.72, 1,970,465.76 and 783,284.16 is: 1,080,940.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,862.72 : 1,970,465.76 = 783,284.16 : x
  2. Step 2: Convert to fraction form
    1,427,862.72/1,970,465.76 = 783,284.16/x
  3. Step 3: Cross multiply
    1,427,862.72x = 1,970,465.76 × 783,284.16
  4. Step 4: Simplify right side
    1,427,862.72x = 1,543,434,617,630.36
  5. Step 5: Solve for x
    x = 1,543,434,617,630.36/1,427,862.72
  6. Step 6: Final answer
    x = 1,080,940.48

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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.