Home / 753,885.98-1,040,370.70-409,721.93

Finding the Fourth Proportional to 753,885.98, 1,040,370.70 and 409,721.93

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Solution

The fourth proportional to 753,885.98, 1,040,370.70 and 409,721.93 is: 565,420.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,885.98 : 1,040,370.70 = 409,721.93 : x
  2. Step 2: Convert to fraction form
    753,885.98/1,040,370.70 = 409,721.93/x
  3. Step 3: Cross multiply
    753,885.98x = 1,040,370.70 × 409,721.93
  4. Step 4: Simplify right side
    753,885.98x = 426,262,691,119.45
  5. Step 5: Solve for x
    x = 426,262,691,119.45/753,885.98
  6. Step 6: Final answer
    x = 565,420.64

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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.