Home / 849,907.44-1,274,849.64-289,332.72

Finding the Fourth Proportional to 849,907.44, 1,274,849.64 and 289,332.72

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Solution

The fourth proportional to 849,907.44, 1,274,849.64 and 289,332.72 is: 433,995.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,907.44 : 1,274,849.64 = 289,332.72 : x
  2. Step 2: Convert to fraction form
    849,907.44/1,274,849.64 = 289,332.72/x
  3. Step 3: Cross multiply
    849,907.44x = 1,274,849.64 × 289,332.72
  4. Step 4: Simplify right side
    849,907.44x = 368,855,713,932.22
  5. Step 5: Solve for x
    x = 368,855,713,932.22/849,907.44
  6. Step 6: Final answer
    x = 433,995.16

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Double scale
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Similar ratio
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1.5x scale

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.