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Finding the Fourth Proportional to 555,648.72, 766,779.36 and 326,202.24

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Solution

The fourth proportional to 555,648.72, 766,779.36 and 326,202.24 is: 450,149.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,648.72 : 766,779.36 = 326,202.24 : x
  2. Step 2: Convert to fraction form
    555,648.72/766,779.36 = 326,202.24/x
  3. Step 3: Cross multiply
    555,648.72x = 766,779.36 × 326,202.24
  4. Step 4: Simplify right side
    555,648.72x = 250,125,144,817.77
  5. Step 5: Solve for x
    x = 250,125,144,817.77/555,648.72
  6. Step 6: Final answer
    x = 450,149.77

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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.