Home / 438,914.12-605,458.96-357,330.14

Finding the Fourth Proportional to 438,914.12, 605,458.96 and 357,330.14

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Solution

The fourth proportional to 438,914.12, 605,458.96 and 357,330.14 is: 492,918.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,914.12 : 605,458.96 = 357,330.14 : x
  2. Step 2: Convert to fraction form
    438,914.12/605,458.96 = 357,330.14/x
  3. Step 3: Cross multiply
    438,914.12x = 605,458.96 × 357,330.14
  4. Step 4: Simplify right side
    438,914.12x = 216,348,734,941.05
  5. Step 5: Solve for x
    x = 216,348,734,941.05/438,914.12
  6. Step 6: Final answer
    x = 492,918.15

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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.