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Finding the Fourth Proportional to 545,617.88, 752,990.48 and 330,767

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Solution

The fourth proportional to 545,617.88, 752,990.48 and 330,767 is: 456,481.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,617.88 : 752,990.48 = 330,767 : x
  2. Step 2: Convert to fraction form
    545,617.88/752,990.48 = 330,767/x
  3. Step 3: Cross multiply
    545,617.88x = 752,990.48 × 330,767
  4. Step 4: Simplify right side
    545,617.88x = 249,064,402,098.16
  5. Step 5: Solve for x
    x = 249,064,402,098.16/545,617.88
  6. Step 6: Final answer
    x = 456,481.38

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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.