Home / 740,978.20-1,022,550.93-401,446.45

Finding the Fourth Proportional to 740,978.20, 1,022,550.93 and 401,446.45

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Solution

The fourth proportional to 740,978.20, 1,022,550.93 and 401,446.45 is: 553,996.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,978.20 : 1,022,550.93 = 401,446.45 : x
  2. Step 2: Convert to fraction form
    740,978.20/1,022,550.93 = 401,446.45/x
  3. Step 3: Cross multiply
    740,978.20x = 1,022,550.93 × 401,446.45
  4. Step 4: Simplify right side
    740,978.20x = 410,499,440,792.70
  5. Step 5: Solve for x
    x = 410,499,440,792.70/740,978.20
  6. Step 6: Final answer
    x = 553,996.65

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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.