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Finding the Fourth Proportional to 545,875.89, 753,313.77 and 300,869.34

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Solution

The fourth proportional to 545,875.89, 753,313.77 and 300,869.34 is: 415,202.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,875.89 : 753,313.77 = 300,869.34 : x
  2. Step 2: Convert to fraction form
    545,875.89/753,313.77 = 300,869.34/x
  3. Step 3: Cross multiply
    545,875.89x = 753,313.77 × 300,869.34
  4. Step 4: Simplify right side
    545,875.89x = 226,649,016,792.81
  5. Step 5: Solve for x
    x = 226,649,016,792.81/545,875.89
  6. Step 6: Final answer
    x = 415,202.47

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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.