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Finding the Fourth Proportional to 545,618.36, 752,991.20 and 330,767.48

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Solution

The fourth proportional to 545,618.36, 752,991.20 and 330,767.48 is: 456,482.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,618.36 : 752,991.20 = 330,767.48 : x
  2. Step 2: Convert to fraction form
    545,618.36/752,991.20 = 330,767.48/x
  3. Step 3: Cross multiply
    545,618.36x = 752,991.20 × 330,767.48
  4. Step 4: Simplify right side
    545,618.36x = 249,065,000,032.34
  5. Step 5: Solve for x
    x = 249,065,000,032.34/545,618.36
  6. Step 6: Final answer
    x = 456,482.07

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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.