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Finding the Fourth Proportional to 540,101.25, 745,339.73 and 313,761.33

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Solution

The fourth proportional to 540,101.25, 745,339.73 and 313,761.33 is: 432,990.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,101.25 : 745,339.73 = 313,761.33 : x
  2. Step 2: Convert to fraction form
    540,101.25/745,339.73 = 313,761.33/x
  3. Step 3: Cross multiply
    540,101.25x = 745,339.73 × 313,761.33
  4. Step 4: Simplify right side
    540,101.25x = 233,858,783,417.83
  5. Step 5: Solve for x
    x = 233,858,783,417.83/540,101.25
  6. Step 6: Final answer
    x = 432,990.64

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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.