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Finding the Fourth Proportional to 389,057.36, 583,192.04 and 262,386.32

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Solution

The fourth proportional to 389,057.36, 583,192.04 and 262,386.32 is: 393,313.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,057.36 : 583,192.04 = 262,386.32 : x
  2. Step 2: Convert to fraction form
    389,057.36/583,192.04 = 262,386.32/x
  3. Step 3: Cross multiply
    389,057.36x = 583,192.04 × 262,386.32
  4. Step 4: Simplify right side
    389,057.36x = 153,021,613,228.89
  5. Step 5: Solve for x
    x = 153,021,613,228.89/389,057.36
  6. Step 6: Final answer
    x = 393,313.76

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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.