Home / 1,312,300.71-1,810,974.97-708,688.71

Finding the Fourth Proportional to 1,312,300.71, 1,810,974.97 and 708,688.71

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Solution

The fourth proportional to 1,312,300.71, 1,810,974.97 and 708,688.71 is: 977,990.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,300.71 : 1,810,974.97 = 708,688.71 : x
  2. Step 2: Convert to fraction form
    1,312,300.71/1,810,974.97 = 708,688.71/x
  3. Step 3: Cross multiply
    1,312,300.71x = 1,810,974.97 × 708,688.71
  4. Step 4: Simplify right side
    1,312,300.71x = 1,283,417,515,331.59
  5. Step 5: Solve for x
    x = 1,283,417,515,331.59/1,312,300.71
  6. Step 6: Final answer
    x = 977,990.41

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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.