Home / 743,479.12-1,115,716.92-477,426.48

Finding the Fourth Proportional to 743,479.12, 1,115,716.92 and 477,426.48

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Solution

The fourth proportional to 743,479.12, 1,115,716.92 and 477,426.48 is: 716,459.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,479.12 : 1,115,716.92 = 477,426.48 : x
  2. Step 2: Convert to fraction form
    743,479.12/1,115,716.92 = 477,426.48/x
  3. Step 3: Cross multiply
    743,479.12x = 1,115,716.92 × 477,426.48
  4. Step 4: Simplify right side
    743,479.12x = 532,672,801,792.04
  5. Step 5: Solve for x
    x = 532,672,801,792.04/743,479.12
  6. Step 6: Final answer
    x = 716,459.67

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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.