Home / 856,122.72-1,181,462.18-468,973.80

Finding the Fourth Proportional to 856,122.72, 1,181,462.18 and 468,973.80

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Solution

The fourth proportional to 856,122.72, 1,181,462.18 and 468,973.80 is: 647,190.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,122.72 : 1,181,462.18 = 468,973.80 : x
  2. Step 2: Convert to fraction form
    856,122.72/1,181,462.18 = 468,973.80/x
  3. Step 3: Cross multiply
    856,122.72x = 1,181,462.18 × 468,973.80
  4. Step 4: Simplify right side
    856,122.72x = 554,074,808,110.88
  5. Step 5: Solve for x
    x = 554,074,808,110.88/856,122.72
  6. Step 6: Final answer
    x = 647,190.87

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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.