Home / 877,764.44-1,316,512.20-278,647.40

Finding the Fourth Proportional to 877,764.44, 1,316,512.20 and 278,647.40

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Solution

The fourth proportional to 877,764.44, 1,316,512.20 and 278,647.40 is: 417,928.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,764.44 : 1,316,512.20 = 278,647.40 : x
  2. Step 2: Convert to fraction form
    877,764.44/1,316,512.20 = 278,647.40/x
  3. Step 3: Cross multiply
    877,764.44x = 1,316,512.20 × 278,647.40
  4. Step 4: Simplify right side
    877,764.44x = 366,842,701,598.28
  5. Step 5: Solve for x
    x = 366,842,701,598.28/877,764.44
  6. Step 6: Final answer
    x = 417,928.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.