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Finding the Fourth Proportional to 540,550.84, 745,169.34 and 378,918.04

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Solution

The fourth proportional to 540,550.84, 745,169.34 and 378,918.04 is: 522,352.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,550.84 : 745,169.34 = 378,918.04 : x
  2. Step 2: Convert to fraction form
    540,550.84/745,169.34 = 378,918.04/x
  3. Step 3: Cross multiply
    540,550.84x = 745,169.34 × 378,918.04
  4. Step 4: Simplify right side
    540,550.84x = 282,358,105,780.89
  5. Step 5: Solve for x
    x = 282,358,105,780.89/540,550.84
  6. Step 6: Final answer
    x = 522,352.54

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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.