Home / 1,315,980.14-1,815,943.22-772,059.02

Finding the Fourth Proportional to 1,315,980.14, 1,815,943.22 and 772,059.02

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Solution

The fourth proportional to 1,315,980.14, 1,815,943.22 and 772,059.02 is: 1,065,377.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,980.14 : 1,815,943.22 = 772,059.02 : x
  2. Step 2: Convert to fraction form
    1,315,980.14/1,815,943.22 = 772,059.02/x
  3. Step 3: Cross multiply
    1,315,980.14x = 1,815,943.22 × 772,059.02
  4. Step 4: Simplify right side
    1,315,980.14x = 1,402,015,342,808.84
  5. Step 5: Solve for x
    x = 1,402,015,342,808.84/1,315,980.14
  6. Step 6: Final answer
    x = 1,065,377.28

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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.