Home / 679,427.39-937,700.75-438,410.68

Finding the Fourth Proportional to 679,427.39, 937,700.75 and 438,410.68

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Solution

The fourth proportional to 679,427.39, 937,700.75 and 438,410.68 is: 605,065.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,427.39 : 937,700.75 = 438,410.68 : x
  2. Step 2: Convert to fraction form
    679,427.39/937,700.75 = 438,410.68/x
  3. Step 3: Cross multiply
    679,427.39x = 937,700.75 × 438,410.68
  4. Step 4: Simplify right side
    679,427.39x = 411,098,022,195.79
  5. Step 5: Solve for x
    x = 411,098,022,195.79/679,427.39
  6. Step 6: Final answer
    x = 605,065.42

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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.