Home / 515,509.07-773,829.25-409,573.96

Finding the Fourth Proportional to 515,509.07, 773,829.25 and 409,573.96

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Solution

The fourth proportional to 515,509.07, 773,829.25 and 409,573.96 is: 614,810.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,509.07 : 773,829.25 = 409,573.96 : x
  2. Step 2: Convert to fraction form
    515,509.07/773,829.25 = 409,573.96/x
  3. Step 3: Cross multiply
    515,509.07x = 773,829.25 × 409,573.96
  4. Step 4: Simplify right side
    515,509.07x = 316,940,307,327.82
  5. Step 5: Solve for x
    x = 316,940,307,327.82/515,509.07
  6. Step 6: Final answer
    x = 614,810.35

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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.