Home / 780,670.30-1,077,326.76-436,518.68

Finding the Fourth Proportional to 780,670.30, 1,077,326.76 and 436,518.68

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Solution

The fourth proportional to 780,670.30, 1,077,326.76 and 436,518.68 is: 602,396.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,670.30 : 1,077,326.76 = 436,518.68 : x
  2. Step 2: Convert to fraction form
    780,670.30/1,077,326.76 = 436,518.68/x
  3. Step 3: Cross multiply
    780,670.30x = 1,077,326.76 × 436,518.68
  4. Step 4: Simplify right side
    780,670.30x = 470,273,255,203.88
  5. Step 5: Solve for x
    x = 470,273,255,203.88/780,670.30
  6. Step 6: Final answer
    x = 602,396.75

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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.