Home / 877,982.32-1,316,963.88-213,134.32

Finding the Fourth Proportional to 877,982.32, 1,316,963.88 and 213,134.32

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Solution

The fourth proportional to 877,982.32, 1,316,963.88 and 213,134.32 is: 319,699.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,982.32 : 1,316,963.88 = 213,134.32 : x
  2. Step 2: Convert to fraction form
    877,982.32/1,316,963.88 = 213,134.32/x
  3. Step 3: Cross multiply
    877,982.32x = 1,316,963.88 × 213,134.32
  4. Step 4: Simplify right side
    877,982.32x = 280,690,201,028.36
  5. Step 5: Solve for x
    x = 280,690,201,028.36/877,982.32
  6. Step 6: Final answer
    x = 319,699.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.