Home / 545,618.11-752,990.85-330,767.23

Finding the Fourth Proportional to 545,618.11, 752,990.85 and 330,767.23

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Solution

The fourth proportional to 545,618.11, 752,990.85 and 330,767.23 is: 456,481.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,618.11 : 752,990.85 = 330,767.23 : x
  2. Step 2: Convert to fraction form
    545,618.11/752,990.85 = 330,767.23/x
  3. Step 3: Cross multiply
    545,618.11x = 752,990.85 × 330,767.23
  4. Step 4: Simplify right side
    545,618.11x = 249,064,697,669.85
  5. Step 5: Solve for x
    x = 249,064,697,669.85/545,618.11
  6. Step 6: Final answer
    x = 456,481.73

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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.