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Finding the Fourth Proportional to 400,707.84, 600,836.58 and 274,490.40

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Solution

The fourth proportional to 400,707.84, 600,836.58 and 274,490.40 is: 411,581.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,707.84 : 600,836.58 = 274,490.40 : x
  2. Step 2: Convert to fraction form
    400,707.84/600,836.58 = 274,490.40/x
  3. Step 3: Cross multiply
    400,707.84x = 600,836.58 × 274,490.40
  4. Step 4: Simplify right side
    400,707.84x = 164,923,873,178.83
  5. Step 5: Solve for x
    x = 164,923,873,178.83/400,707.84
  6. Step 6: Final answer
    x = 411,581.35

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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.