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Finding the Fourth Proportional to 550,381.77, 759,528.23 and 321,096.69

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Solution

The fourth proportional to 550,381.77, 759,528.23 and 321,096.69 is: 443,114.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,381.77 : 759,528.23 = 321,096.69 : x
  2. Step 2: Convert to fraction form
    550,381.77/759,528.23 = 321,096.69/x
  3. Step 3: Cross multiply
    550,381.77x = 759,528.23 × 321,096.69
  4. Step 4: Simplify right side
    550,381.77x = 243,881,999,009.08
  5. Step 5: Solve for x
    x = 243,881,999,009.08/550,381.77
  6. Step 6: Final answer
    x = 443,114.24

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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.