Home / 631,282.10-946,923.15-418,705.70

Finding the Fourth Proportional to 631,282.10, 946,923.15 and 418,705.70

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Solution

The fourth proportional to 631,282.10, 946,923.15 and 418,705.70 is: 628,058.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,282.10 : 946,923.15 = 418,705.70 : x
  2. Step 2: Convert to fraction form
    631,282.10/946,923.15 = 418,705.70/x
  3. Step 3: Cross multiply
    631,282.10x = 946,923.15 × 418,705.70
  4. Step 4: Simplify right side
    631,282.10x = 396,482,120,366.96
  5. Step 5: Solve for x
    x = 396,482,120,366.96/631,282.10
  6. Step 6: Final answer
    x = 628,058.55

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Double scale
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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.