Home / 879,477.28-1,213,708.44-516,895.90

Finding the Fourth Proportional to 879,477.28, 1,213,708.44 and 516,895.90

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Solution

The fourth proportional to 879,477.28, 1,213,708.44 and 516,895.90 is: 713,333.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,477.28 : 1,213,708.44 = 516,895.90 : x
  2. Step 2: Convert to fraction form
    879,477.28/1,213,708.44 = 516,895.90/x
  3. Step 3: Cross multiply
    879,477.28x = 1,213,708.44 × 516,895.90
  4. Step 4: Simplify right side
    879,477.28x = 627,360,916,431.40
  5. Step 5: Solve for x
    x = 627,360,916,431.40/879,477.28
  6. Step 6: Final answer
    x = 713,333.85

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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.