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Finding the Fourth Proportional to 606,674.10, 910,205.55 and 407,219.70

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Solution

The fourth proportional to 606,674.10, 910,205.55 and 407,219.70 is: 610,960.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,674.10 : 910,205.55 = 407,219.70 : x
  2. Step 2: Convert to fraction form
    606,674.10/910,205.55 = 407,219.70/x
  3. Step 3: Cross multiply
    606,674.10x = 910,205.55 × 407,219.70
  4. Step 4: Simplify right side
    606,674.10x = 370,653,631,009.34
  5. Step 5: Solve for x
    x = 370,653,631,009.34/606,674.10
  6. Step 6: Final answer
    x = 610,960.04

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Similar ratio
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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.