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Finding the Fourth Proportional to 495,009.60, 683,109.12 and 268,655.04

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Solution

The fourth proportional to 495,009.60, 683,109.12 and 268,655.04 is: 370,741.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,009.60 : 683,109.12 = 268,655.04 : x
  2. Step 2: Convert to fraction form
    495,009.60/683,109.12 = 268,655.04/x
  3. Step 3: Cross multiply
    495,009.60x = 683,109.12 × 268,655.04
  4. Step 4: Simplify right side
    495,009.60x = 183,520,707,957.97
  5. Step 5: Solve for x
    x = 183,520,707,957.97/495,009.60
  6. Step 6: Final answer
    x = 370,741.71

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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.