Home / 778,977.89-1,075,168.84-456,791.79

Finding the Fourth Proportional to 778,977.89, 1,075,168.84 and 456,791.79

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Solution

The fourth proportional to 778,977.89, 1,075,168.84 and 456,791.79 is: 630,477.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,977.89 : 1,075,168.84 = 456,791.79 : x
  2. Step 2: Convert to fraction form
    778,977.89/1,075,168.84 = 456,791.79/x
  3. Step 3: Cross multiply
    778,977.89x = 1,075,168.84 × 456,791.79
  4. Step 4: Simplify right side
    778,977.89x = 491,128,296,674.39
  5. Step 5: Solve for x
    x = 491,128,296,674.39/778,977.89
  6. Step 6: Final answer
    x = 630,477.84

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Double scale
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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.