Home / 936,970.80-1,405,110.60-305,905.20

Finding the Fourth Proportional to 936,970.80, 1,405,110.60 and 305,905.20

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Solution

The fourth proportional to 936,970.80, 1,405,110.60 and 305,905.20 is: 458,744.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,970.80 : 1,405,110.60 = 305,905.20 : x
  2. Step 2: Convert to fraction form
    936,970.80/1,405,110.60 = 305,905.20/x
  3. Step 3: Cross multiply
    936,970.80x = 1,405,110.60 × 305,905.20
  4. Step 4: Simplify right side
    936,970.80x = 429,830,639,115.12
  5. Step 5: Solve for x
    x = 429,830,639,115.12/936,970.80
  6. Step 6: Final answer
    x = 458,744.97

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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.