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Finding the Fourth Proportional to 552,779.76, 829,045.80 and 215,828.40

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Solution

The fourth proportional to 552,779.76, 829,045.80 and 215,828.40 is: 323,694.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,779.76 : 829,045.80 = 215,828.40 : x
  2. Step 2: Convert to fraction form
    552,779.76/829,045.80 = 215,828.40/x
  3. Step 3: Cross multiply
    552,779.76x = 829,045.80 × 215,828.40
  4. Step 4: Simplify right side
    552,779.76x = 178,931,628,540.72
  5. Step 5: Solve for x
    x = 178,931,628,540.72/552,779.76
  6. Step 6: Final answer
    x = 323,694.25

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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.