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Finding the Fourth Proportional to 804,752,918.88, 1,206,269,974.80 and 458,961,974.88

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Solution

The fourth proportional to 804,752,918.88, 1,206,269,974.80 and 458,961,974.88 is: 687,952,832.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,752,918.88 : 1,206,269,974.80 = 458,961,974.88 : x
  2. Step 2: Convert to fraction form
    804,752,918.88/1,206,269,974.80 = 458,961,974.88/x
  3. Step 3: Cross multiply
    804,752,918.88x = 1,206,269,974.80 × 458,961,974.88
  4. Step 4: Simplify right side
    804,752,918.88x = 553,632,049,872,655,808
  5. Step 5: Solve for x
    x = 553,632,049,872,655,808/804,752,918.88
  6. Step 6: Final answer
    x = 687,952,832.33

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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.