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Finding the Fourth Proportional to 672,779.72, 928,429.24 and 366,855.33

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Solution

The fourth proportional to 672,779.72, 928,429.24 and 366,855.33 is: 506,256.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,779.72 : 928,429.24 = 366,855.33 : x
  2. Step 2: Convert to fraction form
    672,779.72/928,429.24 = 366,855.33/x
  3. Step 3: Cross multiply
    672,779.72x = 928,429.24 × 366,855.33
  4. Step 4: Simplify right side
    672,779.72x = 340,599,213,251.76
  5. Step 5: Solve for x
    x = 340,599,213,251.76/672,779.72
  6. Step 6: Final answer
    x = 506,256.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.