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Finding the Fourth Proportional to 495,432.64, 683,980.32 and 326,158.88

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Solution

The fourth proportional to 495,432.64, 683,980.32 and 326,158.88 is: 450,285.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,432.64 : 683,980.32 = 326,158.88 : x
  2. Step 2: Convert to fraction form
    495,432.64/683,980.32 = 326,158.88/x
  3. Step 3: Cross multiply
    495,432.64x = 683,980.32 × 326,158.88
  4. Step 4: Simplify right side
    495,432.64x = 223,086,255,113.24
  5. Step 5: Solve for x
    x = 223,086,255,113.24/495,432.64
  6. Step 6: Final answer
    x = 450,285.74

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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.