Home / 780,215.52-1,170,345.17-381,175.50

Finding the Fourth Proportional to 780,215.52, 1,170,345.17 and 381,175.50

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Solution

The fourth proportional to 780,215.52, 1,170,345.17 and 381,175.50 is: 571,773.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,215.52 : 1,170,345.17 = 381,175.50 : x
  2. Step 2: Convert to fraction form
    780,215.52/1,170,345.17 = 381,175.50/x
  3. Step 3: Cross multiply
    780,215.52x = 1,170,345.17 × 381,175.50
  4. Step 4: Simplify right side
    780,215.52x = 446,106,905,347.34
  5. Step 5: Solve for x
    x = 446,106,905,347.34/780,215.52
  6. Step 6: Final answer
    x = 571,773.94

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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.