Home / 849,905.28-1,172,825.76-467,858.40

Finding the Fourth Proportional to 849,905.28, 1,172,825.76 and 467,858.40

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Solution

The fourth proportional to 849,905.28, 1,172,825.76 and 467,858.40 is: 645,620.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,905.28 : 1,172,825.76 = 467,858.40 : x
  2. Step 2: Convert to fraction form
    849,905.28/1,172,825.76 = 467,858.40/x
  3. Step 3: Cross multiply
    849,905.28x = 1,172,825.76 × 467,858.40
  4. Step 4: Simplify right side
    849,905.28x = 548,716,383,552.38
  5. Step 5: Solve for x
    x = 548,716,383,552.38/849,905.28
  6. Step 6: Final answer
    x = 645,620.63

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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.