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Finding the Fourth Proportional to 495,423.60, 743,135.40 and 346,124.40

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Solution

The fourth proportional to 495,423.60, 743,135.40 and 346,124.40 is: 519,186.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,423.60 : 743,135.40 = 346,124.40 : x
  2. Step 2: Convert to fraction form
    495,423.60/743,135.40 = 346,124.40/x
  3. Step 3: Cross multiply
    495,423.60x = 743,135.40 × 346,124.40
  4. Step 4: Simplify right side
    495,423.60x = 257,217,294,443.76
  5. Step 5: Solve for x
    x = 257,217,294,443.76/495,423.60
  6. Step 6: Final answer
    x = 519,186.60

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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.