Home / 890,390.62-1,228,770.40-508,410.46

Finding the Fourth Proportional to 890,390.62, 1,228,770.40 and 508,410.46

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Solution

The fourth proportional to 890,390.62, 1,228,770.40 and 508,410.46 is: 701,624.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,390.62 : 1,228,770.40 = 508,410.46 : x
  2. Step 2: Convert to fraction form
    890,390.62/1,228,770.40 = 508,410.46/x
  3. Step 3: Cross multiply
    890,390.62x = 1,228,770.40 × 508,410.46
  4. Step 4: Simplify right side
    890,390.62x = 624,719,724,298.38
  5. Step 5: Solve for x
    x = 624,719,724,298.38/890,390.62
  6. Step 6: Final answer
    x = 701,624.33

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.