Home / 711,708.35-1,067,562.51-290,885.81

Finding the Fourth Proportional to 711,708.35, 1,067,562.51 and 290,885.81

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Solution

The fourth proportional to 711,708.35, 1,067,562.51 and 290,885.81 is: 436,328.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,708.35 : 1,067,562.51 = 290,885.81 : x
  2. Step 2: Convert to fraction form
    711,708.35/1,067,562.51 = 290,885.81/x
  3. Step 3: Cross multiply
    711,708.35x = 1,067,562.51 × 290,885.81
  4. Step 4: Simplify right side
    711,708.35x = 310,538,780,109.17
  5. Step 5: Solve for x
    x = 310,538,780,109.17/711,708.35
  6. Step 6: Final answer
    x = 436,328.70

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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.