Home / 821,330.98-1,232,769.33-416,813.64

Finding the Fourth Proportional to 821,330.98, 1,232,769.33 and 416,813.64

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Solution

The fourth proportional to 821,330.98, 1,232,769.33 and 416,813.64 is: 625,612.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,330.98 : 1,232,769.33 = 416,813.64 : x
  2. Step 2: Convert to fraction form
    821,330.98/1,232,769.33 = 416,813.64/x
  3. Step 3: Cross multiply
    821,330.98x = 1,232,769.33 × 416,813.64
  4. Step 4: Simplify right side
    821,330.98x = 513,835,071,717.66
  5. Step 5: Solve for x
    x = 513,835,071,717.66/821,330.98
  6. Step 6: Final answer
    x = 625,612.68

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Double scale
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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.