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Finding the Fourth Proportional to 545,319.51, 752,539.32 and 303,595.88

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Solution

The fourth proportional to 545,319.51, 752,539.32 and 303,595.88 is: 418,961.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,319.51 : 752,539.32 = 303,595.88 : x
  2. Step 2: Convert to fraction form
    545,319.51/752,539.32 = 303,595.88/x
  3. Step 3: Cross multiply
    545,319.51x = 752,539.32 × 303,595.88
  4. Step 4: Simplify right side
    545,319.51x = 228,467,833,327.31
  5. Step 5: Solve for x
    x = 228,467,833,327.31/545,319.51
  6. Step 6: Final answer
    x = 418,961.41

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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.