Home / 457,225.12-630,916.50-263,630.80

Finding the Fourth Proportional to 457,225.12, 630,916.50 and 263,630.80

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Solution

The fourth proportional to 457,225.12, 630,916.50 and 263,630.80 is: 363,779.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,225.12 : 630,916.50 = 263,630.80 : x
  2. Step 2: Convert to fraction form
    457,225.12/630,916.50 = 263,630.80/x
  3. Step 3: Cross multiply
    457,225.12x = 630,916.50 × 263,630.80
  4. Step 4: Simplify right side
    457,225.12x = 166,329,021,628.20
  5. Step 5: Solve for x
    x = 166,329,021,628.20/457,225.12
  6. Step 6: Final answer
    x = 363,779.27

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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.