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Finding the Fourth Proportional to 545,443.90, 752,817.75 and 330,701.58

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Solution

The fourth proportional to 545,443.90, 752,817.75 and 330,701.58 is: 456,431.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,443.90 : 752,817.75 = 330,701.58 : x
  2. Step 2: Convert to fraction form
    545,443.90/752,817.75 = 330,701.58/x
  3. Step 3: Cross multiply
    545,443.90x = 752,817.75 × 330,701.58
  4. Step 4: Simplify right side
    545,443.90x = 248,958,019,377.05
  5. Step 5: Solve for x
    x = 248,958,019,377.05/545,443.90
  6. Step 6: Final answer
    x = 456,431.94

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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.