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Finding the Fourth Proportional to 545,964, 753,435.81 and 300,957.48

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Solution

The fourth proportional to 545,964, 753,435.81 and 300,957.48 is: 415,324.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,964 : 753,435.81 = 300,957.48 : x
  2. Step 2: Convert to fraction form
    545,964/753,435.81 = 300,957.48/x
  3. Step 3: Cross multiply
    545,964x = 753,435.81 × 300,957.48
  4. Step 4: Simplify right side
    545,964x = 226,752,142,719.36
  5. Step 5: Solve for x
    x = 226,752,142,719.36/545,964
  6. Step 6: Final answer
    x = 415,324.35

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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.