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Finding the Fourth Proportional to 545,477.68, 752,759.04 and 319,166.96

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Solution

The fourth proportional to 545,477.68, 752,759.04 and 319,166.96 is: 440,450.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,477.68 : 752,759.04 = 319,166.96 : x
  2. Step 2: Convert to fraction form
    545,477.68/752,759.04 = 319,166.96/x
  3. Step 3: Cross multiply
    545,477.68x = 752,759.04 × 319,166.96
  4. Step 4: Simplify right side
    545,477.68x = 240,255,814,409.32
  5. Step 5: Solve for x
    x = 240,255,814,409.32/545,477.68
  6. Step 6: Final answer
    x = 440,450.31

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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.