Home / 821,520.71-1,232,421.21-366,277.13

Finding the Fourth Proportional to 821,520.71, 1,232,421.21 and 366,277.13

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Solution

The fourth proportional to 821,520.71, 1,232,421.21 and 366,277.13 is: 549,478.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,520.71 : 1,232,421.21 = 366,277.13 : x
  2. Step 2: Convert to fraction form
    821,520.71/1,232,421.21 = 366,277.13/x
  3. Step 3: Cross multiply
    821,520.71x = 1,232,421.21 × 366,277.13
  4. Step 4: Simplify right side
    821,520.71x = 451,407,703,749.93
  5. Step 5: Solve for x
    x = 451,407,703,749.93/821,520.71
  6. Step 6: Final answer
    x = 549,478.18

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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.