Home / 423,084.48-634,626.96-209,999.61

Finding the Fourth Proportional to 423,084.48, 634,626.96 and 209,999.61

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Solution

The fourth proportional to 423,084.48, 634,626.96 and 209,999.61 is: 314,999.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,084.48 : 634,626.96 = 209,999.61 : x
  2. Step 2: Convert to fraction form
    423,084.48/634,626.96 = 209,999.61/x
  3. Step 3: Cross multiply
    423,084.48x = 634,626.96 × 209,999.61
  4. Step 4: Simplify right side
    423,084.48x = 133,271,414,095.49
  5. Step 5: Solve for x
    x = 133,271,414,095.49/423,084.48
  6. Step 6: Final answer
    x = 314,999.53

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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.