Home / 542,811.35-749,065.19-313,360.89

Finding the Fourth Proportional to 542,811.35, 749,065.19 and 313,360.89

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Solution

The fourth proportional to 542,811.35, 749,065.19 and 313,360.89 is: 432,429.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,811.35 : 749,065.19 = 313,360.89 : x
  2. Step 2: Convert to fraction form
    542,811.35/749,065.19 = 313,360.89/x
  3. Step 3: Cross multiply
    542,811.35x = 749,065.19 × 313,360.89
  4. Step 4: Simplify right side
    542,811.35x = 234,727,733,039.62
  5. Step 5: Solve for x
    x = 234,727,733,039.62/542,811.35
  6. Step 6: Final answer
    x = 432,429.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.