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Finding the Fourth Proportional to 495,430.60, 683,697.72 and 269,076.10

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Solution

The fourth proportional to 495,430.60, 683,697.72 and 269,076.10 is: 371,326.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,430.60 : 683,697.72 = 269,076.10 : x
  2. Step 2: Convert to fraction form
    495,430.60/683,697.72 = 269,076.10/x
  3. Step 3: Cross multiply
    495,430.60x = 683,697.72 × 269,076.10
  4. Step 4: Simplify right side
    495,430.60x = 183,966,715,376.28
  5. Step 5: Solve for x
    x = 183,966,715,376.28/495,430.60
  6. Step 6: Final answer
    x = 371,326.92

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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.