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Finding the Fourth Proportional to 556,605.85, 834,389.37 and 219,649.30

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Solution

The fourth proportional to 556,605.85, 834,389.37 and 219,649.30 is: 329,268.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,605.85 : 834,389.37 = 219,649.30 : x
  2. Step 2: Convert to fraction form
    556,605.85/834,389.37 = 219,649.30/x
  3. Step 3: Cross multiply
    556,605.85x = 834,389.37 × 219,649.30
  4. Step 4: Simplify right side
    556,605.85x = 183,273,041,047.94
  5. Step 5: Solve for x
    x = 183,273,041,047.94/556,605.85
  6. Step 6: Final answer
    x = 329,268.98

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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.