Home / 849,905.78-1,172,826.45-467,858.90

Finding the Fourth Proportional to 849,905.78, 1,172,826.45 and 467,858.90

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Solution

The fourth proportional to 849,905.78, 1,172,826.45 and 467,858.90 is: 645,621.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,905.78 : 1,172,826.45 = 467,858.90 : x
  2. Step 2: Convert to fraction form
    849,905.78/1,172,826.45 = 467,858.90/x
  3. Step 3: Cross multiply
    849,905.78x = 1,172,826.45 × 467,858.90
  4. Step 4: Simplify right side
    849,905.78x = 548,717,292,787.91
  5. Step 5: Solve for x
    x = 548,717,292,787.91/849,905.78
  6. Step 6: Final answer
    x = 645,621.32

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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.