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Finding the Fourth Proportional to 495,878.60, 743,817.90 and 346,579.40

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Solution

The fourth proportional to 495,878.60, 743,817.90 and 346,579.40 is: 519,869.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,878.60 : 743,817.90 = 346,579.40 : x
  2. Step 2: Convert to fraction form
    495,878.60/743,817.90 = 346,579.40/x
  3. Step 3: Cross multiply
    495,878.60x = 743,817.90 × 346,579.40
  4. Step 4: Simplify right side
    495,878.60x = 257,791,961,491.26
  5. Step 5: Solve for x
    x = 257,791,961,491.26/495,878.60
  6. Step 6: Final answer
    x = 519,869.10

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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.