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Finding the Fourth Proportional to 495,999.28, 684,483.84 and 269,649.64

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Solution

The fourth proportional to 495,999.28, 684,483.84 and 269,649.64 is: 372,119.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,999.28 : 684,483.84 = 269,649.64 : x
  2. Step 2: Convert to fraction form
    495,999.28/684,483.84 = 269,649.64/x
  3. Step 3: Cross multiply
    495,999.28x = 684,483.84 × 269,649.64
  4. Step 4: Simplify right side
    495,999.28x = 184,570,821,041.82
  5. Step 5: Solve for x
    x = 184,570,821,041.82/495,999.28
  6. Step 6: Final answer
    x = 372,119.13

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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.