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Finding the Fourth Proportional to 495,980.40, 684,459.72 and 269,630.76

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Solution

The fourth proportional to 495,980.40, 684,459.72 and 269,630.76 is: 372,094.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,980.40 : 684,459.72 = 269,630.76 : x
  2. Step 2: Convert to fraction form
    495,980.40/684,459.72 = 269,630.76/x
  3. Step 3: Cross multiply
    495,980.40x = 684,459.72 × 269,630.76
  4. Step 4: Simplify right side
    495,980.40x = 184,551,394,492.99
  5. Step 5: Solve for x
    x = 184,551,394,492.99/495,980.40
  6. Step 6: Final answer
    x = 372,094.13

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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.