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Finding the Fourth Proportional to 565,129.28, 779,875.29 and 307,004.16

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Solution

The fourth proportional to 565,129.28, 779,875.29 and 307,004.16 is: 423,664.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,129.28 : 779,875.29 = 307,004.16 : x
  2. Step 2: Convert to fraction form
    565,129.28/779,875.29 = 307,004.16/x
  3. Step 3: Cross multiply
    565,129.28x = 779,875.29 × 307,004.16
  4. Step 4: Simplify right side
    565,129.28x = 239,424,958,311.21
  5. Step 5: Solve for x
    x = 239,424,958,311.21/565,129.28
  6. Step 6: Final answer
    x = 423,664.05

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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.