Home / 478,867.62-660,837.24-274,931.64

Finding the Fourth Proportional to 478,867.62, 660,837.24 and 274,931.64

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Solution

The fourth proportional to 478,867.62, 660,837.24 and 274,931.64 is: 379,405.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,867.62 : 660,837.24 = 274,931.64 : x
  2. Step 2: Convert to fraction form
    478,867.62/660,837.24 = 274,931.64/x
  3. Step 3: Cross multiply
    478,867.62x = 660,837.24 × 274,931.64
  4. Step 4: Simplify right side
    478,867.62x = 181,685,066,166.27
  5. Step 5: Solve for x
    x = 181,685,066,166.27/478,867.62
  6. Step 6: Final answer
    x = 379,405.62

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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.