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Finding the Fourth Proportional to 556,603.85, 834,386.37 and 219,647.30

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Solution

The fourth proportional to 556,603.85, 834,386.37 and 219,647.30 is: 329,265.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,603.85 : 834,386.37 = 219,647.30 : x
  2. Step 2: Convert to fraction form
    556,603.85/834,386.37 = 219,647.30/x
  3. Step 3: Cross multiply
    556,603.85x = 834,386.37 × 219,647.30
  4. Step 4: Simplify right side
    556,603.85x = 183,270,708,331.69
  5. Step 5: Solve for x
    x = 183,270,708,331.69/556,603.85
  6. Step 6: Final answer
    x = 329,265.97

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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.