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Finding the Fourth Proportional to 479,941.92, 662,400.72 and 278,854.56

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Solution

The fourth proportional to 479,941.92, 662,400.72 and 278,854.56 is: 384,866.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,941.92 : 662,400.72 = 278,854.56 : x
  2. Step 2: Convert to fraction form
    479,941.92/662,400.72 = 278,854.56/x
  3. Step 3: Cross multiply
    479,941.92x = 662,400.72 × 278,854.56
  4. Step 4: Simplify right side
    479,941.92x = 184,713,461,319.28
  5. Step 5: Solve for x
    x = 184,713,461,319.28/479,941.92
  6. Step 6: Final answer
    x = 384,866.28

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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.