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Finding the Fourth Proportional to 565,347.51, 780,234.42 and 323,664.57

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Solution

The fourth proportional to 565,347.51, 780,234.42 and 323,664.57 is: 446,688.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,347.51 : 780,234.42 = 323,664.57 : x
  2. Step 2: Convert to fraction form
    565,347.51/780,234.42 = 323,664.57/x
  3. Step 3: Cross multiply
    565,347.51x = 780,234.42 × 323,664.57
  4. Step 4: Simplify right side
    565,347.51x = 252,534,238,048.50
  5. Step 5: Solve for x
    x = 252,534,238,048.50/565,347.51
  6. Step 6: Final answer
    x = 446,688.51

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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.