Home / 810,063.96-1,215,205.28-297,660.76

Finding the Fourth Proportional to 810,063.96, 1,215,205.28 and 297,660.76

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Solution

The fourth proportional to 810,063.96, 1,215,205.28 and 297,660.76 is: 446,531.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,063.96 : 1,215,205.28 = 297,660.76 : x
  2. Step 2: Convert to fraction form
    810,063.96/1,215,205.28 = 297,660.76/x
  3. Step 3: Cross multiply
    810,063.96x = 1,215,205.28 × 297,660.76
  4. Step 4: Simplify right side
    810,063.96x = 361,718,927,200.81
  5. Step 5: Solve for x
    x = 361,718,927,200.81/810,063.96
  6. Step 6: Final answer
    x = 446,531.32

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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.