Home / 753,330.46-1,039,603.68-409,169.72

Finding the Fourth Proportional to 753,330.46, 1,039,603.68 and 409,169.72

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Solution

The fourth proportional to 753,330.46, 1,039,603.68 and 409,169.72 is: 564,658.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,330.46 : 1,039,603.68 = 409,169.72 : x
  2. Step 2: Convert to fraction form
    753,330.46/1,039,603.68 = 409,169.72/x
  3. Step 3: Cross multiply
    753,330.46x = 1,039,603.68 × 409,169.72
  4. Step 4: Simplify right side
    753,330.46x = 425,374,346,656.57
  5. Step 5: Solve for x
    x = 425,374,346,656.57/753,330.46
  6. Step 6: Final answer
    x = 564,658.37

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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.