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Finding the Fourth Proportional to 495,520.64, 684,101.78 and 326,246.84

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Solution

The fourth proportional to 495,520.64, 684,101.78 and 326,246.84 is: 450,407.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,520.64 : 684,101.78 = 326,246.84 : x
  2. Step 2: Convert to fraction form
    495,520.64/684,101.78 = 326,246.84/x
  3. Step 3: Cross multiply
    495,520.64x = 684,101.78 × 326,246.84
  4. Step 4: Simplify right side
    495,520.64x = 223,186,043,963.38
  5. Step 5: Solve for x
    x = 223,186,043,963.38/495,520.64
  6. Step 6: Final answer
    x = 450,407.16

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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.