Home / 949,521.80-1,424,282.69-318,433.79

Finding the Fourth Proportional to 949,521.80, 1,424,282.69 and 318,433.79

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Solution

The fourth proportional to 949,521.80, 1,424,282.69 and 318,433.79 is: 477,650.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    949,521.80 : 1,424,282.69 = 318,433.79 : x
  2. Step 2: Convert to fraction form
    949,521.80/1,424,282.69 = 318,433.79/x
  3. Step 3: Cross multiply
    949,521.80x = 1,424,282.69 × 318,433.79
  4. Step 4: Simplify right side
    949,521.80x = 453,539,728,682.77
  5. Step 5: Solve for x
    x = 453,539,728,682.77/949,521.80
  6. Step 6: Final answer
    x = 477,650.68

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Double scale
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Similar ratio
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1.5x scale

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.