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Finding the Fourth Proportional to 495,905.60, 743,858.40 and 346,606.40

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Solution

The fourth proportional to 495,905.60, 743,858.40 and 346,606.40 is: 519,909.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,905.60 : 743,858.40 = 346,606.40 : x
  2. Step 2: Convert to fraction form
    495,905.60/743,858.40 = 346,606.40/x
  3. Step 3: Cross multiply
    495,905.60x = 743,858.40 × 346,606.40
  4. Step 4: Simplify right side
    495,905.60x = 257,826,082,133.76
  5. Step 5: Solve for x
    x = 257,826,082,133.76/495,905.60
  6. Step 6: Final answer
    x = 519,909.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.