Home / 438,723.92-605,131.08-302,812.40

Finding the Fourth Proportional to 438,723.92, 605,131.08 and 302,812.40

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Solution

The fourth proportional to 438,723.92, 605,131.08 and 302,812.40 is: 417,668.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,723.92 : 605,131.08 = 302,812.40 : x
  2. Step 2: Convert to fraction form
    438,723.92/605,131.08 = 302,812.40/x
  3. Step 3: Cross multiply
    438,723.92x = 605,131.08 × 302,812.40
  4. Step 4: Simplify right side
    438,723.92x = 183,241,194,649.39
  5. Step 5: Solve for x
    x = 183,241,194,649.39/438,723.92
  6. Step 6: Final answer
    x = 417,668.58

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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.