Home / 545,615.11-752,986.70-330,764.23

Finding the Fourth Proportional to 545,615.11, 752,986.70 and 330,764.23

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Solution

The fourth proportional to 545,615.11, 752,986.70 and 330,764.23 is: 456,477.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,615.11 : 752,986.70 = 330,764.23 : x
  2. Step 2: Convert to fraction form
    545,615.11/752,986.70 = 330,764.23/x
  3. Step 3: Cross multiply
    545,615.11x = 752,986.70 × 330,764.23
  4. Step 4: Simplify right side
    545,615.11x = 249,061,066,025.74
  5. Step 5: Solve for x
    x = 249,061,066,025.74/545,615.11
  6. Step 6: Final answer
    x = 456,477.58

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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.