Home / 545,642.34-752,867.67-330,835.20

Finding the Fourth Proportional to 545,642.34, 752,867.67 and 330,835.20

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Solution

The fourth proportional to 545,642.34, 752,867.67 and 330,835.20 is: 456,480.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,642.34 : 752,867.67 = 330,835.20 : x
  2. Step 2: Convert to fraction form
    545,642.34/752,867.67 = 330,835.20/x
  3. Step 3: Cross multiply
    545,642.34x = 752,867.67 × 330,835.20
  4. Step 4: Simplify right side
    545,642.34x = 249,075,126,177.98
  5. Step 5: Solve for x
    x = 249,075,126,177.98/545,642.34
  6. Step 6: Final answer
    x = 456,480.57

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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.