Home / 667,383.12-920,250.73-425,282.22

Finding the Fourth Proportional to 667,383.12, 920,250.73 and 425,282.22

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Solution

The fourth proportional to 667,383.12, 920,250.73 and 425,282.22 is: 586,419.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,383.12 : 920,250.73 = 425,282.22 : x
  2. Step 2: Convert to fraction form
    667,383.12/920,250.73 = 425,282.22/x
  3. Step 3: Cross multiply
    667,383.12x = 920,250.73 × 425,282.22
  4. Step 4: Simplify right side
    667,383.12x = 391,366,272,347.82
  5. Step 5: Solve for x
    x = 391,366,272,347.82/667,383.12
  6. Step 6: Final answer
    x = 586,419.20

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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.