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Finding the Fourth Proportional to 565,276.74, 780,045.21 and 323,561.22

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Solution

The fourth proportional to 565,276.74, 780,045.21 and 323,561.22 is: 446,493.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,276.74 : 780,045.21 = 323,561.22 : x
  2. Step 2: Convert to fraction form
    565,276.74/780,045.21 = 323,561.22/x
  3. Step 3: Cross multiply
    565,276.74x = 780,045.21 × 323,561.22
  4. Step 4: Simplify right side
    565,276.74x = 252,392,379,802.76
  5. Step 5: Solve for x
    x = 252,392,379,802.76/565,276.74
  6. Step 6: Final answer
    x = 446,493.48

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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.