Home / 411,946.20-616,709.70-307,229.40

Finding the Fourth Proportional to 411,946.20, 616,709.70 and 307,229.40

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Solution

The fourth proportional to 411,946.20, 616,709.70 and 307,229.40 is: 459,941.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,946.20 : 616,709.70 = 307,229.40 : x
  2. Step 2: Convert to fraction form
    411,946.20/616,709.70 = 307,229.40/x
  3. Step 3: Cross multiply
    411,946.20x = 616,709.70 × 307,229.40
  4. Step 4: Simplify right side
    411,946.20x = 189,471,351,105.18
  5. Step 5: Solve for x
    x = 189,471,351,105.18/411,946.20
  6. Step 6: Final answer
    x = 459,941.98

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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.