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Finding the Fourth Proportional to 495,421.60, 743,132.40 and 346,122.40

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Solution

The fourth proportional to 495,421.60, 743,132.40 and 346,122.40 is: 519,183.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,421.60 : 743,132.40 = 346,122.40 : x
  2. Step 2: Convert to fraction form
    495,421.60/743,132.40 = 346,122.40/x
  3. Step 3: Cross multiply
    495,421.60x = 743,132.40 × 346,122.40
  4. Step 4: Simplify right side
    495,421.60x = 257,214,769,805.76
  5. Step 5: Solve for x
    x = 257,214,769,805.76/495,421.60
  6. Step 6: Final answer
    x = 519,183.60

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1.5x scale

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.