Home / 720,999.41-1,081,501.47-271,599.66

Finding the Fourth Proportional to 720,999.41, 1,081,501.47 and 271,599.66

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Solution

The fourth proportional to 720,999.41, 1,081,501.47 and 271,599.66 is: 407,400.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,999.41 : 1,081,501.47 = 271,599.66 : x
  2. Step 2: Convert to fraction form
    720,999.41/1,081,501.47 = 271,599.66/x
  3. Step 3: Cross multiply
    720,999.41x = 1,081,501.47 × 271,599.66
  4. Step 4: Simplify right side
    720,999.41x = 293,735,431,541.50
  5. Step 5: Solve for x
    x = 293,735,431,541.50/720,999.41
  6. Step 6: Final answer
    x = 407,400.38

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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.