Home / 565,659.38-780,581.04-310,961.36

Finding the Fourth Proportional to 565,659.38, 780,581.04 and 310,961.36

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Solution

The fourth proportional to 565,659.38, 780,581.04 and 310,961.36 is: 429,110.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,659.38 : 780,581.04 = 310,961.36 : x
  2. Step 2: Convert to fraction form
    565,659.38/780,581.04 = 310,961.36/x
  3. Step 3: Cross multiply
    565,659.38x = 780,581.04 × 310,961.36
  4. Step 4: Simplify right side
    565,659.38x = 242,730,537,885.71
  5. Step 5: Solve for x
    x = 242,730,537,885.71/565,659.38
  6. Step 6: Final answer
    x = 429,110.78

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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.