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Finding the Fourth Proportional to 495,484.92, 683,652 and 291,544.80

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Solution

The fourth proportional to 495,484.92, 683,652 and 291,544.80 is: 402,262.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,484.92 : 683,652 = 291,544.80 : x
  2. Step 2: Convert to fraction form
    495,484.92/683,652 = 291,544.80/x
  3. Step 3: Cross multiply
    495,484.92x = 683,652 × 291,544.80
  4. Step 4: Simplify right side
    495,484.92x = 199,315,185,609.60
  5. Step 5: Solve for x
    x = 199,315,185,609.60/495,484.92
  6. Step 6: Final answer
    x = 402,262.87

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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.