Home / 879,849-1,214,178.66-517,313.64

Finding the Fourth Proportional to 879,849, 1,214,178.66 and 517,313.64

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Solution

The fourth proportional to 879,849, 1,214,178.66 and 517,313.64 is: 713,885.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,849 : 1,214,178.66 = 517,313.64 : x
  2. Step 2: Convert to fraction form
    879,849/1,214,178.66 = 517,313.64/x
  3. Step 3: Cross multiply
    879,849x = 1,214,178.66 × 517,313.64
  4. Step 4: Simplify right side
    879,849x = 628,111,182,214.92
  5. Step 5: Solve for x
    x = 628,111,182,214.92/879,849
  6. Step 6: Final answer
    x = 713,885.20

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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.