Home / 540,339.26-745,619.18-310,835.48

Finding the Fourth Proportional to 540,339.26, 745,619.18 and 310,835.48

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Solution

The fourth proportional to 540,339.26, 745,619.18 and 310,835.48 is: 428,924.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,339.26 : 745,619.18 = 310,835.48 : x
  2. Step 2: Convert to fraction form
    540,339.26/745,619.18 = 310,835.48/x
  3. Step 3: Cross multiply
    540,339.26x = 745,619.18 × 310,835.48
  4. Step 4: Simplify right side
    540,339.26x = 231,764,890,430.23
  5. Step 5: Solve for x
    x = 231,764,890,430.23/540,339.26
  6. Step 6: Final answer
    x = 428,924.77

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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.