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Finding the Fourth Proportional to 479,315.80, 718,973.70 and 302,606.20

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Solution

The fourth proportional to 479,315.80, 718,973.70 and 302,606.20 is: 453,909.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,315.80 : 718,973.70 = 302,606.20 : x
  2. Step 2: Convert to fraction form
    479,315.80/718,973.70 = 302,606.20/x
  3. Step 3: Cross multiply
    479,315.80x = 718,973.70 × 302,606.20
  4. Step 4: Simplify right side
    479,315.80x = 217,565,899,256.94
  5. Step 5: Solve for x
    x = 217,565,899,256.94/479,315.80
  6. Step 6: Final answer
    x = 453,909.30

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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.